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Spanish number words

1 in Spanish Words

1 in Spanish is:

uno

Standalone form · Long scale

1 in Spanish is uno.

Convert another number

Current input format: decimal comma (1.234,56).

Input format and grammatical form

Use the selected separator format; it is not guessed automatically. For decimals, choose “Standalone number.” Feminine forms apply to nouns such as casas, not special cases such as águilas.

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How to write 1

This cardinal is written as one word. Its standalone Spanish form is uno.

The standalone form ends in uno. Before a masculine noun, use un; before a feminine noun, use una.

Standaloneuno
Before a masculine nounun
Before a feminine noununa

These are numeral forms, not complete phrases. Millón and billón may require de before a noun when they end an exact quantity. The feminine mode does not cover nouns beginning with a stressed a sound.

Related numbers

0cero2dos21veintiuno100cien101ciento uno1000mil
Unicode and HTML entities

These representations identify each character, including accented letters, in the Spanish result.

Frequently asked questions

How do you write 1 in Spanish words?

1 in Spanish is uno.

Which spelling rule applies to 1?

This cardinal is written as one word. Its standalone Spanish form is uno.

Is this an ordinal number?

No. uno is a cardinal reading. This page does not express a position such as first or second.

Method and sources

The converter applies composition rules to the input digits. The references below explain Spanish spelling and agreement; they do not certify this tool.

Other languages

Number to English words · Number to Arabic words · Number to Hindi words

1 in other languages

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