### word:

Palindrome
* Read a list of palindromes, including some two dimensional palindromes.
* Some palindromes reorder complete words instead of each letter.
* are numbers that read the same forwards as backwards
* are sentences or lines that read the same forward and backward
  - that have the same sequence of letters both forward and backward
  - very difficult to write
  - words or sentences that read the same backwards or forwards
* can be of even or odd length.
* mark the end of a gene.
* participate in the control of a gene function.

### word:

Preposition
* Most prepositions locate an object in time or space.
* Some prepositions also function as subordinate conjunctions
  - even consist of two or more words.
  * Most prepositions tell where or when, or show possession
* are also important for many patterns because they often identify role relationships
  - function words
  - grammatical glue that express relations between a noun and something else
* are important little words
  - metaphors
  - parts of speech
  - places
  - terrible words to end sentences with
* are the little tags which fit the slots
  - words that indicate location
  - usually little words that indicate direction, position, location, and so forth
* become nouns, nouns become verbs, and conjunctions and suffixes just disappear.
* can also show location in time.
* connect nouns or pronouns to the rest of the sentence.
* show relationships between nouns or pronouns and other words in a sentence
  - objects and ideas in a sentence
* usually have a wide range of meanings.

Primitive
* are formulas
  - people
  - the name of the group of shapes that are the basic building blocks of stuff
* divine the future by examining the entrails of chickens or the gall bladders of pigs.

### word:

Pronoun
* All pronouns have antecedents.
* Avoid the use of awkward or unpronounceable pronoun combinations.
* Many pronouns can function as adjectives when they are followed by a noun.
* Some pronouns can appear in more than one classification
  - change their form, depending on whether they are subjects, objects, or possessives
  - depend on the gender of the replaced person
  - have nouns or pronouns to which they refer, called antecedents
* Use a plural pronoun whenever possible to avoid gender bias.
* also cause a problem in cases where the number of references to a keyword are counted
  - have a specific case
* are also an issue when using gender-specific language
  - generic words that have little meaning on their own
  - little words, but they're often troublesome
  - remarkable in how infrequently they are used
* are special types of nouns
  - useful for referring in more natural way to people in messages
* are words that are used in the place of a noun
  - replace nouns
  - used in place of nouns
* can function as subjects in sentences or as objects
  - make speaking and writing easier
  - really reveal our point of view and our values
  - take the place of the subject of a sentence
* have different forms according to how they are used in a sentence
  - special genitive cases, all lacking apostrophes
  - the same gender and number as the noun they are replacing
* just replace nouns that have been mentioned already in a conversation or text.
* often use the dual number, which gradually disappears in other Germanic dialects.
* prey on the poor in spirit.
* provide a form of shorthand.
* refer to the nearest noun of the same number.
* replace complete noun phrases.
* shift in gender, person, and number.
* take the place of a noun, whether stated explicitly or implied
* where used refer equally to both sexes.
+ English grammar, Parts of speech, Pronouns: Grammar
  * Pronouns are special types of nouns. They are not a particular thing. They can mean many different things. The noun before a pronoun that the pronoun really means is called the antecedent.