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único

unique; only

adjective OO-nee-koh Common
Descriptions & Qualities Degree

Also means

sole

Usage Note

Único before the noun (el único problema) means 'the only one,' while after the noun it means 'unique' in quality (una pieza única). Like other adjectives ending in -o, it has a feminine form única. The phrase hijo único / hija única means 'only child.' Do not confuse with solo (alone), though both can translate as 'only' in certain contexts.

Examples

"Es la única solución posible."

Natural Translation

It is the only possible solution.

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