ounce

1 of 2

noun (1)

1
a
: a unit of weight equal to ¹/₁₂ troy pound see Weights and Measures Table
b
: a unit of weight equal to ¹/₁₆ avoirdupois pound
c
: a small amount
an ounce of sense
2

ounce

2 of 2

noun (2)

Examples of ounce in a Sentence

Recent Examples on the Web
Noun
Recreational cannabis consumers can purchase up to 2.5 ounces of cannabis at a time, with no more than 15 grams of concentrate, a super-potent mass made by distilling down desirable parts of the cannabis plant. Detroit Free Press, 4 Apr. 2024 Though the amounts permitted in Germany are relatively small — adults are allowed to possess up to three ounces of cannabis flower in New York, for example — the new law still makes Germany one of the most lenient countries on marijuana in the European Union. Sammy Westfall, Washington Post, 1 Apr. 2024 If their surprise success of 2021 was fueled by winning at the margins, playing the matchups and squeezing every ounce of value out of their 40-man roster, then consider 2024 a return to pitching and defense. Evan Webeck, The Mercury News, 28 Mar. 2024 Whereas the world-record smallmouth weighed an astonishing 11 pounds, 15 ounces, the biggest largemouth known to man nearly doubled it, weighing 22 pounds, 4 ounces. Shaye Baker, Field & Stream, 28 Mar. 2024 The manufacturer recommends mixing two scoops with six ounces of water or milk, but this powder can also be added to smoothies, oatmeal, or baked goods. Tamar Kane, Ms, Rd, Parents, 27 Mar. 2024 The team’s analysis revealed participants who consumed at least 3.53 ounces of whole eggs daily—about two large eggs—had significantly elevated BMD levels in their femurs and spines. Sarah Garone, Health, 23 Mar. 2024 The Dietary Guidelines for Americans recommends that women who may become pregnant, are pregnant, or breastfeeding should consume 8 to 12 ounces of low-mercury fish per week for adequate omega-3 intake. Casey Seiden, Parents, 22 Mar. 2024 Gold prices pushed past their record high to around $2,200 per troy ounce this week after the Federal Reserve brushed off multiple hotter-than-expected inflation reports and reaffirmed its outlook for three interest rate cuts this year. Will Daniel, Fortune, 21 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ounce.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Noun (1)

Middle English, from Anglo-French unce, from Latin uncia 12th part, ounce, from unus one — more at one

Noun (2)

Middle English unce lynx, from Middle French, alteration (by misdivision, as if l'once the ounce) of lonce, probably from Old Italian lonza, from Middle Greek lynk-, lynx, from Greek

First Known Use

Noun (1)

14th century, in the meaning defined at sense 1a

Noun (2)

1774, in the meaning defined above

Time Traveler
The first known use of ounce was in the 14th century

Dictionary Entries Near ounce

Cite this Entry

“Ounce.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ounce. Accessed 18 Apr. 2024.

Kids Definition

ounce

noun
ˈau̇n(t)s
1
a
: a unit of weight equal to ¹⁄₁₂ troy pound (about 31 grams) see measure
b
: a unit of weight equal to ¹⁄₁₆ avoirdupois pound (about 28 grams)
c
: a small amount
an ounce of common sense
2
Etymology

Noun

Middle English unce, ounce "ounce," from early French unce (same meaning), from Latin uncia "a twelfth part, ounce," from unus "one" — related to inch, unite

Word Origin
The Latin word uncia was used to mean "a twelfth part of something." In reference to length, it meant one-twelfth of a pes "foot." In reference to weight, it meant one-twelfth of a libra "pound." Uncia, as a unit of length, came into Old English as ince or ynce, which became our inch. Uncia, as a unit of weight, came into Middle English from the early French word unce and became our ounce. In the present system of weights used in this country, the pound is divided into sixteen parts instead of twelve. The result is that the ounce, which originally meant one-twelfth, is now equal to one-sixteenth of a pound.

Medical Definition

ounce

noun
1
a
: a unit of troy weight equal to ¹/₁₂ troy pound or 31.103 grams
b
: a unit of avoirdupois weight equal to ¹/₁₆ avoirdupois pound or 28.350 grams
2

More from Merriam-Webster on ounce

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