numero uno
nounEtymology From either Spanish número uno or Italian numero uno. Piecewise doublet of number one.
1
Informal The most important of a group.
- Our internal airwaves are priority numero uno. Good news? You’re the spin master; you’re in charge.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):
2
Informal Oneself, especially one’s own interests.
- In his business ventures, he always looks after numero uno.
- Related terms
- look out for number one