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paper knife

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noun

a small, often decorative, knifelike instrument with a blade of metal, ivory, wood, or the like, for slitting open envelopes, the leaves of books, folded papers, etc.
the blade of a paper cutter.

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Origin of paper knife

First recorded in 1800–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for paper knife

paperknife
/ (ˈpeɪpəˌnaɪf) /

noun plural -knives

a knife with a comparatively blunt blade, esp one of wood, bone, etc, for opening sealed envelopes
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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