Consistently using one standard with regard to the spelling of words, with slight differences between American English and British English
Punctuation
The act of using a system of symbols such as the comma, period, quotation marks, question marks, etc. that are used to give structure to and organize a text
Quotation marks
Show that words have been directly quoted
Apostrophe
Has two main functions: 1) Shows that a letter (or letters) has been omitted from a word in a contraction, 2) Used to make a noun possessive
Hyphen
Has two main functions: 1) To form compound words, 2) After the prefix of a word
En dash
Generally used to indicate a range of numbers or a period of time
Em dash
Shows a big pause in a sentence or emphasizes the end of a sentence
Ellipsis
A series of three dots that shows that something has been removed from a sentence, or a pause or unfinished sentence
Comma
Joins two or more ideas in a sentence or separates items in a series
Colon
Introduces the information that comes after it, telling the reader that something is coming
Semicolon
Connects two complete sentences that are related
Exclamation mark
Shows strong emphasis or strong emotion, rarely used in formal writing
Question mark
Shows that a question is being asked, that the speaker or writer is seeking an answer to something
Period
The most common punctuation mark, has two main functions: 1) Shows the end of a sentence, 2) Indicates an abbreviation (more common in American English)
Capitalization
The act of writing the first letter of a word in uppercase while the rest of the letters are in lowercase, with rules to remember