numero uno

nu·​me·​ro uno | \ ˈnü-mə-rō-ˈü-(ˌ)nō How to pronounce numero uno (audio) , ˈnyü-\
plural numero unos

Definition of numero uno

 (Entry 1 of 4)

ab uno disce omnes

Latin quotation from Virgil
ab uno dis·​ce om·​nes | \ äb-ˈü-nō-ˌdis-ke-ˈȯm-ˌnās How to pronounce ab uno disce omnes (audio) \

Definition of ab uno disce omnes (Entry 2 of 4)

: from one, learn all : from one instance you may infer the whole

tria juncta in uno

Latin phrase
tria junc·​ta in uno | \ ˌtri-ä-ˈyu̇ŋk-tä-in-ˈü-nō How to pronounce tria juncta in uno (audio) \

Definition of tria juncta in uno (Entry 3 of 4)

: three joined in one motto of the Order of the Bath

uno animo

Latin adverb
uno ani·​mo | \ ˌü-nō-ˈä-ni-ˌmō How to pronounce uno animo (audio) \

Definition of uno animo (Entry 4 of 4)

: with one mind : unanimously

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Other Words from numero uno


numero uno adjective

Examples of numero uno in a Sentence


The company is numero uno in computer technology.

Recent Examples on the Web: Noun

After the wedding, this will be priority numero uno. . Marie Claire, "A California Couple, a Blowout Wedding, and 2 Paychecks," 10 Jan. 2019 That story, Nantz said, would be 1A. And numero uno? Teddy Greenstein,, "With Tiger Woods roaring, the ‘most anticipated' Masters is upon us," 30 Mar. 2018 New Mexico has future Laker Michael Cooper, the numero uno ofensiva en el mundo, the whole turquoise jewelry bit. Tom Corvin,, "Remember the Titans: Forty years after Cal State Who, Fullerton takes on Purdue," 15 Mar. 2018 In Mexico, Rosewood Mayakoba is numero uno, followed by The Resort at Pedregal (2), Esperanza, an Auberge Resort (3), One&Only Palmilla (4) and Las Ventanas al Paraiso, a Rosewood Resort (5). Lori Rackl,, "2 of the top 3 U.S. hotels are in Chicago, report says," 5 Feb. 2018 Your own health and well-being is or should be numero uno. Minerva, San Francisco Chronicle, "Minerva’s horoscope for week of Dec. 17," 17 Dec. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'numero uno.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of numero uno


1944, in the meaning defined above

History and Etymology for numero uno


Italian numero uno or Spanish número uno

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Time Traveler for numero uno

The first known use of numero uno was in 1944

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Comments on numero uno

What made you want to look up numero uno? Please tell us where you read or heard it (including the quote, if possible).


one from the Upper Peninsula of Michigan

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