Dictionary, Glossary, and Thesaurus

verb

action word or state of being

adjective

efficient, good

thesaurus entry

lists synonyms; useful for improving word choice

adverb

modifies a verb or an adjective or another verb (often ends in -ly)

noun

person, place, thing, or idea

Dictionary entry

shows spelling, pronunciation (how a word is spoken), part of speech, root(s), and meaning(s)

glossary entry

shows the word's meaning as it is used in the book containing the glossary (located at the end of the book)