numero uno

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See also: número uno

English

Etymology

From either Spanish número uno or Italian numero uno. Piecewise doublet of number one.

Noun

numero uno (plural numero unos)

  1. (informal) The most important of a group.
    Synonyms: see Thesaurus:important person
    • 2023 November 14, Beth Romero, “Be a Weeble”, in Happy AF: Simple Strategies to Get Unstuck, Bounce Back, and Live Your Best Life, Berkeley, Calif.: She Writes Press, →ISBN, chapter 1 (The Art of Letting Go, Bouncing Back, and Being):
      Our internal airwaves are priority numero uno. Good news? You’re the spin master; you’re in charge.
  2. (informal) Oneself, especially one’s own interests.
    In his business ventures, he always looks after numero uno.

Italian

Noun

numero uno m

  1. the first in a series, or the most important in a group

Derived terms