How to Say "eighteen" in Spanish
The Spanish word for “eighteen” is “dieciocho” — A1 level. This is a very common word in everyday Spanish.

Examples
Tengo dieciocho años y mañana empiezo la universidad.
I am eighteen years old and tomorrow I start university.
El apartamento número dieciocho tiene un balcón muy bonito.
Apartment number eighteen has a very beautiful balcony.
La independencia se celebra el dieciocho de septiembre.
Independence is celebrated on the eighteenth of September.
Always the same
Unlike many words in Spanish that change to match boys or girls, 'dieciocho' always stays the same regardless of what you are counting.
One single word
It comes from 'diez y ocho' (ten and eight), but in modern Spanish, it is squished into one word where the 'y' changes to an 'i'.
Using 'To Be' for age
Mistake: “Yo soy dieciocho años.”
Correction: Tengo dieciocho años. In Spanish, you 'have' years rather than 'being' a certain age.
Splitting the word
Mistake: “Diez y ocho.”
Correction: Dieciocho. While it sounds like three words, it must be written as one for numbers between 16 and 29.
Related Translations
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