Breadcrumb Home > Dictionary > Index P Cite 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 TrendingHere are the facts and trivia that people are buzzing about. January 2021 Current Events: US News The Holocaust (1933–1945) Chinese New Year History, Meaning, and Celebrations Noble Titles and Ranks in a Monarchy The 5 Best Air Purifiers of 2020 Inaugural Trivia Related Content Daily Word Quiz: obviate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language