Pennyweight
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A unit of mass equal to 24 grains, or ¹⁄₂₀ of a troy ounce.
- 2 a unit of apothecary weight equal to 24 grains wordnet
Etymology
From Middle English penyweight; equivalent to penny + weight: it was the weight of a silver penny (¹⁄₂₄₀ of a pound).
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.