One

"One" in Italian

un

(being a preeminent example)

un certo

(being an unknown person with the specified name)

un tale

(being an unknown person with the specified name)

biglietto di un dollaro

(dollar bill)

uno

(digit or figure)

uno

(cardinal number 1)

una

(impersonal pronoun; one thing or person)

uno

(impersonal pronoun; one thing or person)

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.