| A | B |
| adjective | a form-class word |
| adverb | a form-class word |
| form | denotes the part of speech of a word or the makeup of a grammatical structure |
| form class | the set of words capable of changing form through the addition of inflectional and derivational morphemes |
| frame sentence | a sentence with an empty slot in the position typically occupied by a member of a particular form class. |
| function | the role a word or phrase plays in a sentence. |
| gender | the classification of English nouns and pronouns as masculine, feminine, or neuter based on the sex of the person or thing refered to or on the conventional assignment of sex to inanimate objects. |
| gerund | a verb having the {-ing} inflection and functioning as a nominal phrase. |
| grammatical feature | a characteristic of a subclass of words that determines how they may be used. |
| lexicon | the complete stock of words known by any speaker |
| modifier | a word or phrase whose function is to give grammatical or lexical information about another word in the sentence. |
| noun | a form-class word |
| number | the singular or plural state of nouns or pronouns. |
| qualifier | aka intensifier. a structure-class word |
| semantic feature | elements of meaning (like human/nonhuman, animate/inanimate) that affect how words can be combined. |
| verb | a form-class word having an {-s} affix in the third-person singular and an {-ing} affix in the present participle form |
| gradable adjective | an adjective that can occur with qualifiers |
| common noun | a noun that names nonunique persons, places, or things |
| count noun | a noun that can be preceded by a number. |
| noncount noun | aka mass noun. a noun that ordinarily cannot be preceeded by a number or the determiner a/an. |