What is the meaning of Uno?

A term said when the number of cards in player’s hand is reduced to one. If another player says this before the one whose hand contains only one card, the player who failed to say 'uno' must draw two cards.

one

one

one

one

water

what

to kill

unit

one

an, a

someone, a person

one

one

ablative masculine/neuter singular of ūnus

dative masculine/neuter singular of ūnus

one

only; singular (alone in a category)

indivisible (unable to be divided)

Uno (a card game played with special cards)

first-person singular present indicative of unir

one

one

one

first-person singular present indicative of unir

one

act of stammering, especially from embarrassment

maternal uncle

to join, unite, affiliate, amalgamate

to wish, will, desire, crave

Source: wiktionary.org