| A | B |
| a | used before words which begin with a consonant |
| an | used before words which begin with a vowel sound |
| accept | verb that means "to receive" |
| except | preposition that means "other than" |
| affect | verb (always) that means "to influence" |
| effect | noun (usually) that means "the result" or verb that means "to produce or make happen" |
| allowed | verb that means "permited" or "let happen" |
| aloud | adverb that means "in a normal voice" |
| allusion | brief reference or mention of a famous person, place, thing or idea |
| illusion | false impression or idea |
| a lot | a general descriptive phrase which should not be used in formal writing that means much or many |
| already | adverb that tells when |
| all ready | phrase that means "completely ready" |
| all right | phrase that means "correct" |
| altogether | adverb that means "completely" |
| all together | used to describe people or things which are gathered in one place at one time |
| alot | incorrect spelling of a lot |
| among | used when speaking of more than two persons or things |
| between | used when speaking of only two persons or things |
| alright | incorrect spelling of all right |