noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A knife for cutting paper or opening envelopes.
2. 2
   dull knife used to cut open the envelopes in which letters are mailed or to slit uncut pages of books wordnet

Synonyms

All synonyms

letter openerletter openerpaper knife

Etymology

From paper + knife.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.