ounce

Từ điển Oxford Advanced Learner 8th

ounce [ounce ounces] BrE [aʊns] NAmE [aʊns] noun
1. countable (abbr.oz)a unit for measuring weight, 1/16 of a pound, equal to 28.35 grams
see also ↑fluid ounce
2. singular ~ of sth (informal) (used especially with negatives)a very small quantity of sth
•There's not an ounce of truth in her story.
see an ounce of prevention is better than a pound of cure at ↑prevention

Word Origin:
Middle English: from Old French unce, from Latin uncia ‘twelfth part (of a pound or foot)’; compare with ↑inch.

• Từ đồng nghĩa / Synonyms:
  snow leopard, Panthera uncia, oz., troy ounce, apothecaries' ounce