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Definition of ounce

ounce

/aʊns/
ounce

Plural:ounces
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ounce Lexical Profile

ounce Game Scores & Validity

• noun

1

A unit of weight equal to one-sixteenth of an avoirdupois pound (approximately 28.35 grams), or one-twelfth of a troy pound (approximately 31.10 grams) used for precious metals.

Example

"The recipe calls for eight ounces of dark chocolate and four ounces of unsalted butter."


2

A unit of liquid capacity (fluid ounce) equal to one-sixteenth of a US pint (approximately 29.57 milliliters) or one-twentieth of an imperial pint (approximately 28.41 milliliters).

Example

"She poured two ounces of freshly brewed espresso into the ceramic mug."


3

A very small amount, particle, or trace of a quality, strength, or emotion (usually used in negative contexts).

Example

"After running the marathon, he did not have an ounce of energy left in his body."


4

The snow leopard (Panthera uncia), a large, long-haired wild cat of the family Felidae native to the high mountain ranges of Central and South Asia, characterized by a thick smoky-gray coat patterned with dark rosettes.

Example

"In older natural history texts, the elusive snow leopard of the Himalayas is frequently referred to as the ounce."

Synonyms
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Antonyms
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• Rhymes for ounce

Word Origin & Etymology

The unit of weight comes via Old French from Latin 'uncia', meaning 'a twelfth part' (as in one-twelfth of a Roman pound or foot), which is also the linguistic source of the English word 'inch'. The zoological sense meaning 'snow leopard' has a separate origin, borrowed from Old French 'once', an alteration of 'lonce' (derived from Latin 'lynx' when the initial 'l-' was mistaken for the French definite article).

Cite this Entry


Wordmom. (2026). Definition of Ounce. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/ounce
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