Breadcrumb Home > Thesaurus > P Synonyms of paperknife Find synonyms for: Noun 1. letter opener, paper knife, paperknife, knife usage: dull knife used to cut open the envelopes in which letters are mailed or to slit uncut pages of books WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of paperknife (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: quisling Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language