/ Dictionary / Index P pest: Meaning and Definition of Find definitions for: pest Pronunciation: (pest), [key] — n. an annoying or troublesome person, animal, or thing; nuisance. an insect or other small animal that harms or destroys garden plants, trees, etc. a deadly epidemic disease, esp. a plague; pestilence. Pest Pronunciation: (pest Hung. pesht), [key] — n. See under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pest (Thesaurus) pessimistic Pestalozzi Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language