Pronunciation of English ⟨a⟩
There are a variety of pronunciations in modern English and in historical forms of the language for words spelled with the letter. Most of these go back to the low vowel (the "short A") of earlier Middle English, which later developed both long and short forms. The sound of the long vowel was altered in the Great Vowel Shift, but later a new long A (or "broad A") developed which was not subject to the shift. These processes have produced the main four pronunciations of in present-day English: those found in the words "trap", "face , father" and "square" (with the phonetic output depending on whether the dialect is rhotic or not, and, in rhotic dialects, whether or not the Mary-merry merger occurs). Separate developments have produced additional pronunciations in words like "wash", "talk" and "comma". Overview. Late Middle English had two phonemes and , differing only in length. The ("short A") was found in words such as "cat" and "trap" , and also before in words such as "start" . The ("long A") was found in words such as "face" , and before in words such as "scare" . This long A was generally a result of Middle English  open syllable lengthening. For a summary of the various developments in Old and Middle English that led to these vowels, see English historical vowel correspondences. As a result of the Great Vowel Shift, the long of "face" was raised, initially to and later to . After 1700 it was raised even further, and then diphthongized, leading to the modern standard pronunciation . Additionally, the short of "trap" was fronted to ; this change became accepted in standard speech during the 17th century. Today there is much regional variation in the realization of this vowel; in RP there has been a recent trend for  it to be lowered again to a fully open . These trends, allowed to operate unrestrictedly, would have left standard English without any vowels in the or area by the late 17th century. However, this putative gap was filled by the following special developments: The of the late 17th century has generally backed to in several varieties of contemporary English, for example in Received Pronunciation. The following table shows some developments of Middle English in Received Pronunciation. The word "gate", which derived from Middle English , has also been included for comparison. The table below shows the results of these developments in  some contemporary varieties of English: <nowiki>*</nowiki> May undergo -tensing. Old and Middle English. Old English (OE) had an open back vowel , written , as well as a front vowel , written . These had corresponding long vowels and but were not normally distinguished from the short vowels in spelling although modern editions of Old English texts often mark them as and . In the low vowel area, there was also a pair of short and long diphthongs, and , written (the long one also in modern editions). In Middle English (ME), the short became merged into a single vowel , written . In some cases  (before certain pairs of consonants) the corresponding long vowels also developed into this short . Mostly, however, OE and were raised to become Middle English (the sound that often gives in modern spelling), and OE was raised and rounded to become ME (often , in modern spelling). For more details, see English historical vowel correspondences. During the Middle English period, like other short vowels, the was lengthened in open syllables. Later, with the gradual loss of unstressed endings, many such syllables ceased to be open, but the vowel remained long. For example, the word "name" originally had two syllables, the first being  open, so the was lengthened; later, the final vowel was dropped, leaving a closed syllable with a long vowel. As a result, there were now two phonemes and , both written , the long one being often indicated by a silent after the following consonant (or, in some cases, by a pronounced vowel after the following consonant, as in "naked" and "bacon"). Further development of Middle English. As a result of the Great Vowel Shift, the long that resulted from Middle English open syllable lengthening was raised, initially to and later to . "seems to have been the normal pronunciation in careful speech  before 1650, and after 1650". After 1700 it was raised even further, and then diphthongized, leading to the modern standard pronunciation , found in words like "name", "face", "bacon". However, some accents, in the north of England and in Scotland, for example, retain a monophthongal pronunciation of this vowel, while other accents have a variety of different diphthongs. Before (historic) /r/, in words like "square", the vowel has become (often practically ) in modern RP, and in General American. Changes in realization of. Independently of the development of the long vowel, the short came to be fronted and raised to . This change  was mostly confined to "vulgar or popular" speech in the 16th century, but it gradually replaced the more conservative in the 17th century, and was "generally accepted by careful speakers by about 1670". This vowel (that of "trap", "cat", "man", "bad", etc.) is now normally denoted as . In present-day RP, however, it has lowered to a fully front . Such a quality is also found in the accents of northern England, Wales, Scotland, Ireland, and the Caribbean. Raised pronunciations are also found in Southern Hemisphere English, and are also associated with Cockney. For the possibility of phonemic length differentiation, see  bad–lad split, below. Development of the new long A. In Modern English, a new phoneme developed that did not exist in Middle English. The phoneme comes from three sources: the word "father" lengthening from to for an unknown reason (thus splitting from "gather"); the compensatory lengthening of the short in words like "calm", "palm", "psalm" when was lost in this environment; and the lengthening of before in words like "car", "card", "hard", "part", etc. In most dialects that developed the broad A class, words containing it joined this new phoneme as well. The new phoneme also became common in  onomatopoeic words like "baa", "ah", "ha ha", as well as in foreign borrowed words like "spa", "taco", "llama", "drama", "piranha", "Bahamas", "pasta", "Bach", many of which vary between and among different dialects of English. Some of these developments are discussed in detail in the following sections. Before /r/. In late Middle English, pairs such as "cat", "cart", were pronounced , respectively, distinguished only by the presence or absence of . However, by the late 17th century they were also distinguished by the quality and length of the vowel. In "cat", the vowel had been fronted to , while in "cart" it had been  lengthened to . This latter change seems to have first occurred in the dialects of southern England in the early 15th century, but did not affect Standard English until the later 17th century. It has affected most varieties of contemporary English, which have distinct vowels in pairs such as "cat", "cart". In non-rhotic accents, the of "cart" has been lost; in modern RP the word is pronounced , distinguished from "cat" only by the quality and length of the vowel. This lengthening occurred when was followed by non-pre-vocalic ; it did not generally apply before intervocalic (when the was followed  by another vowel). Hence the first vowel of "carrot" and "marry" has normally remained the same as that of "cat" (but see the "mary–marry–merry" merger). However, inflected forms and derivatives of words ending in (historic) generally inherit the lengthened vowel, so words like "barring" and "starry" have as do "bar" and "star". Before fricatives. Unlike lengthening before nonprevocalic , which applied universally in Standard English, lengthening, or broadening, before fricatives was inconsistent and sporadic. This seems to have first occurred in the dialects of Southern England between about 1500 and 1650. It penetrated into Standard English from these dialects  around the mid-17th century. The primary environment which favored broadening was before preconsonantal or morpheme-final voiceless fricatives . The voiceless fricative has never promoted broadening in Standard English in words like "ash" and "crash". There is, however, evidence that such broadening did occur in dialects. Once broadening affected a particular word, it tended to spread by analogy to its inflectional derivatives. For example, from "pass" () there was also "passing" . This introduced broadening into the environment _sV, from which it was otherwise excluded (compare "passage" which is not an inflectional form, and was never affected by broadening). In a phenomenon going  back to Middle English, alternate with their voiced equivalents . For example, late Middle English "path" alternated with "paths" . When broadening applied to words such as "path", it naturally extended to these derivatives: thus when broadened to , also broadened to . This introduced broadening into the environment before a voiced fricative. Broadening affected Standard English extremely inconsistently. It seems to have been favored when was adjacent to labial consonants or . It is apparent that it occurred most commonly in short words, especially monosyllables, that were common and well-established in English at the time broadening took place (c. 1500–1650). Words of 3  or more syllables were hardly ever subject to broadening. Learned words, neologisms (such as "gas", first found in the late 17th century), and Latinate or Greek borrowings were rarely broadened. A particularly interesting case is that of the word "father". In late Middle English this was generally pronounced , thus rhyming with "gather" . Broadening of "father" is notable both in two respects: The Oxford English Dictionary describes the broadening of "father" as "anomalous". Dobson, however, sees broadening in "father" as due to the influence of the adjacent and combined. "Rather" and "lather" appear to have been subject to broadening later, and  in fewer varieties of English, by analogy with "father". The table below represents the results of broadening before fricatives in contemporary Received Pronunciation. In general, all these words, to the extent that they existed in Middle English, had ("short A" as in "trap") which was broadened to . The exceptions are: The words "castle", "fasten" and "raspberry" are special cases where subsequent sound changes have altered the conditions initially responsible for lengthening. In "castle" and "fasten", the was pronounced, according to a slight majority of 16th and 17th century sources. In "raspberry" we find rather than . The pattern of lengthening shown  here for Received Pronunciation is generally found in southern England, the Caribbean, and the Southern hemisphere (parts of Australia, New Zealand and South Africa). In North America, with the possible exception of older Boston accents, broadening is found only in "father" (the success of broadening in this word alone in North America unexplained) and "pasta" (which follows the general pattern for recent Italian loanwords, cf. "mafia"). In the Boston area there has historically been a tendency to copy RP lengthening which perhaps reached its zenith in the 1930s but has since receded in the face of general North American norms . In Irish English broadening is found only in "father" (which may, however, also have the FACE vowel). In Scottish and Ulster English the great majority of speakers have no distinction between TRAP and PALM (the "Sam"–"psalm" merger). In Welsh English Wells finds broadening generally only in "father", with some variation. In the north of England, broadening is usually found only in "father" and "half", and in some regions "master". Before nasals. There was a class of Middle English words in which varied with before a nasal. These are nearly all loanwords from French, in which uncertainty about how to realize  the nasalization of the French vowel resulted in two varying pronunciations in English. (One might compare the different ways in which modern French loanwords like "envelope" are pronounced in contemporary varieties of English.) Words with Middle English with the diphthong generally developed to in Early Modern English (e.g. "paw", "daughter"). However, in some of the words with the alternation, especially short words in common use, the vowel instead developed into a long A. In words like "change" and "angel", this development preceded the Great Vowel Shift, and so the resulting long A followed the normal development to modern . In other  cases, however, the long A appeared later, and thus did not undergo the Great Vowel Shift, but instead merged with the long A that had developed before and some fricatives (as described above). Thus words like "dance" and "example" have come to be pronounced (in modern RP, although mostly not in General American) with the vowel of "start" and "bath". Words in this category may therefore have ended up with a variety of pronunciations in modern standard English: (where the short A pronunciation survived), (where the pronunciation with lengthened A was adopted), (where the normal development of the AU diphthong  was followed), and (where the A was lengthened before the Great Vowel Shift). The table below shows the pronunciation of many of these words, classified according to the lexical sets of John Wells: for , for RP vs. General American , for , for , for . Although these words were often spelled with both and in Middle English, the current English spelling generally reflects the pronunciation, with used only for those words which have ; one common exception is "aunt". In some cases, both the and the forms have survived into modern English. For example, from "Sandre", a Norman French form of the name Alexander , the modern English surnames "Sanders" and "Saunders" are both derived. split. The split is a vowel split that occurs mainly in the southern and mainstream varieties of English in England (including Received Pronunciation), in the Southern Hemisphere accents of English (Australian English, New Zealand English, South African English), and also to a lesser extent in older Boston English, by which the Early Modern English phoneme was lengthened in certain environments and ultimately merged with the long of "father". Similar changes took place in words with ; see "lot–cloth" split. merger. The merger is a merger of and occasionally occurring in  Received Pronunciation. It is the outcome of lowering the vowel to for those speakers who have a fronted vowel. The merger is likely not categorical, which means that the phonemes remain distinct in their underlying form, as they usually do in RP. In contemporary RP, is the norm for , whereas is usually backer and somewhat higher than , or even . In the early days of -lowering, the fully open pronunciation of was typically heard as a merger regardless of the exact phonetic realization of . In cockney, and can come close as and . Thus, cockney may be an example of a language  variety that contrasts near-front and fully front vowels of the same height, roundedness and length, though the former tends to undergo lengthening before (see bad-lad split). In General Australian English, the vowels are distinguished as and before non-nasal consonants. A three-way merger of , and is a common pronunciation error among L2 speakers of English whose native language is Italian, Spanish and Catalan. merger. The merger is a merger of and that occurs in Black South African English and commonly also in non-native speech. Section::::"Bad–lad" split. The bad–lad split has been described as a  phonemic split of the Early Modern English short vowel phoneme into a short and a long . This split is found in Australian English and some varieties of English English in which "bad" (with long ) and "lad" (with short ) do not rhyme. The phoneme is usually lengthened to when it comes before an or , within the same syllable. It is furthermore lengthened in the adjectives "bad", "glad" and "mad"; "family" also sometimes has a long vowel, regardless of whether it is pronounced as two or three syllables. Some speakers and regional varieties also use before , , and/or ; such lengthening may be more  irregular than others. Lengthening is prohibited in the past tense of irregular verbs and function words and in modern contractions of polysyllabic words where the was before a consonant followed by a vowel. Lengthening is not stopped by the addition of word-level suffixes. British dialects with the bad–lad split have instead broad in some words where an or follows the vowel. In this circumstance, Australian speakers usually (but not universally) use , except in the words "aunt", "can't" and "shan't", which have broad . Daniel Jones noted for RP that some speakers had a phonemic contrast between a  long and a short , which he wrote as and , respectively. Thus, in "An outline of English phonetics" (1962, ninth edition, Cambridge: W. Heffer & Sons) he noted that "sad", "bad" generally had but "lad", "pad" had . In his pronouncing dictionary, he recorded several minimal pairs, for example "bad" , "bade" (also pronounced ). He noted that for some speakers, "jam" actually represented two different pronunciations, one pronounced meaning 'fruit conserve', the other meaning 'crush, wedging'. Later editions of this dictionary, edited by Alfred C. Gimson, dropped this distinction. Outside of England, "can" meaning 'able to' remains , whereas the noun "can" 'container' or the  verb "can" 'to put into a container' is ; this is similar to the situation found in [/æ/ raising æ-tensing] in some varieties of American English. A common minimal pair for modern RP speakers is "band" and "banned" . Australian speakers who use ‘span’ as the past tense of ‘spin’ also have a minimal pair between longer (meaning width or the transitive verb with a river or divide) and , the past tense of ‘spin’ (). Other minimal pairs found in Australian English include ‘Manning’ (the surname) and ‘manning’ (the present participle and gerund of the verb ‘to man’) as well as 'planet ' versus 'plan it' . Apart from Jones's, dictionaries rarely show a difference between these varieties of . Experimental recordings of RP-speaking Cambridge University undergraduates has indicated that after coarticulatory effects are taken into account, words such as "bag", "that", "gab", "Ann", "ban", "damp", "mad", "bad", and "sad" may have slightly longer vowels than relatively shorter words such as "lad", "snag", "pad", "Pam", and "plan". However, no evidence of consistent duration differentiation was found in the possible minimal pairs "adder"/"adder", "cad"/"CAD", "can" (noun)/"can" (verb), "dam"/"damn", "jam"/"jam", "lam"/"lamb", "manning"/"Manning", "mass"/"mass", "sad"/"SAD". This casts doubt on its status as a true phonemic split  among RP-speakers, and has been described instead as diachronically stable, lexically-specific sub-phonemic variation. raising. In the sociolinguistics of English, raising is a process that occurs in many accents of American English, and to some degree in Canadian English, by which , the "short "a"" vowel found in such words as "ash, bath, man, lamp, pal, rag, sack, trap," etc., is tensed: pronounced as more raised, and lengthened and/or diphthongized in various environments. The realization of this "tense" (as opposed to "lax") varies from to to to , depending on the speaker's regional accent. The most commonly tensed variant  of throughout North American English is when it appears before nasal consonants (thus, for example, in "fan" as opposed to "fat"). In foreign borrowings. Many foreign borrowed words such as "taco", "llama", "drama", "piranha", "Bahamas", "pasta", "Bach", "pecan", "pajamas" etc. vary as to whether or not they have the vowel or the vowel in various dialects in English. In Canada and Northern England, many speakers pronounce such words with the same vowel as , whereas in American, Australian and New Zealand English as well as RP, they usually have the same vowel as (although "taco" and "pasta" have the vowel in  RP). However the pronunciation of certain words can vary even in regions which either usually assign the vowel or usually assign the vowel to such words; "pajamas" and "pecan", for instance, vary among Americans as to whether or not they have . Other pronunciations. Other pronunciations of the letter in English have come about through: