[DOC] [TLE] How To Use Common Punctuation Marks | Dictionary.com Blog [PAR] Oct 7, 2015 ... A two-em (four hyphens) dash is used to show missing letters in a word. ... Do not 
divide before the following suffixes; they should not be at the... [DOC] [TLE] Apostrophe in English | Punctuation and Apostrophes | World ... [PAR] An apostrophe is a punctuation mark that looks like this: ' (sort of half of a quote) 
... When two words join together and a letter is dropped, an apostrophe is used to 
fill in for a ... Do not confuse the following contractions with similar words: ... 
Nevertheless, you should not overuse apostrophes even informally and write: [DOC] [TLE] Apostrophes replace letters - Grammar Monster [PAR] Using apostrophes. Using apostrophes to replace letters in contractions (
grammar lesson) ... Punctuation. Apostrophes ... For example: isn't (from is not); 
don't (from do not); can't (from cannot) ... An apostrophe can be used to show that 
a letter (or letters) is missing from a word. Using an ... shouldn't, should not. that's, 
that is... [DOC] [TLE] Using Apostrophes to Indicate Missing Letters - Spellzone [PAR] May 12, 2014 ... ... take a look at how to use these sneaky little punctuation marks correctly. ... 
Here is a list of contractions commonly used in English. Notice how the missing 
letters are replaced with an apostrophe. ... do not  don't ... should not  shouldn't 
... show character, it will almost certainly lose you marks in an exam,... [DOC] [TLE] Free Flashcards about GRAMMAR/LIT TERMS - StudyStack [PAR] WHEN "DO NOT" AND "SHOULD NOT" ARE CONTRACTED, THIS MARK OF 
PUNCTUATION IS USED TO SHOW MISSING LETTERS, APOSTROPHE. [DOC] [TLE] Apostrophe - Wikipedia [PAR] The apostrophe ( ' or ' ) character is a punctuation mark, and sometimes a 
diacritical mark, in languages that use the Latin alphabet and some other 
alphabets. In English it is used for several purposes: The marking of the omission 
of one or more letters (as in the contraction of do not to don't). ... So apostrophe 
followed by s was often used to mark a plural, especially... [DOC] [TLE] Grammar: The Apostrophe [ ' ] - Grammar and Style in British English [PAR] of words and letters in such expressions as mind your p's and q's, is controversial
. ... The possessive apostrophe is used in the same way with plural nouns in... [DOC] [TLE] ABCs of UEB - Braille Authority of North America [PAR] When UEB terminology differs from that used in EBAE, the familiar EBAE term is 
.... letters and initials when followed by a dash that indicates missing letters. ... Do 
not use a hyphen following a solidus when a word grouping that includes a ... 
Place a letter sign [grade 1 symbol indicator] before a mark of punctuation that... [DOC] [TLE] Rule 14 [PAR] (2) Whenever possible a phrase should not be divided between braille lines. ... (3
) When all punctuation marks are in error and are specifically set off and 
emphasized in ... dash, or question mark with the numbers of a date, see Rule 5, 
Section 4a(5). ... missing letters, an equivalent number of unspaced dot 3s must 
be used. [DOC] [TLE] Punctuation - SMART Teaching Strategies [PAR] or; exclamation marks (A punctuation marker used at the end of a sentence to ... 
To indicate missing letters or numbers in a contracted expression, for example ... 
An apostrophe is used to show that a letter or letters have been left out when two 
or .... The statements that follow the colon do not have to be complete sentences. [DOC] [TLE] Punctuation Pointers [PAR] More than any other aspect of writing, punctuation obeys clear, simple rules. ... 
Commas are the most widely-used and most misunderstood marks of 
punctuation. .... marks the position of missing letters; would not can be contracted 
to wouldn't, ... Some proper nouns that end with an "s" do not follow this rule; 
exceptions...

Question: When "do not" and "should not" are contracted, this mark of punctuation is used to show missing letters
Answer: apostrophe