/ Dictionary / Index P pester: Meaning and Definition of Find definitions for: pes•ter Pronunciation: (pes'tur), [key] — v.t. to bother persistently with petty annoyances; trouble: Don't pester me with your trivial problems. to overcrowd. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pester (Thesaurus) Pestalozzi pesthole 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