Reese's

noun

noun ·2 syllables ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Synonym of peanut butter cup

Etymology

A genericization of the trademark Reese's, a popular brand of peanut butter cup, thus applied to all peanut butter cups.

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