This is the 3298th most frequent Spanish word.
cincuenta
The Spanish word "cincuenta" means "fifty" in English.
Here, 'cincuenta' is used as a cardinal number to specify the exact quantity of books.
Tengo cincuenta libros en mi biblioteca.
I have fifty books in my library.
Here, 'cincuenta' represents a measure of time, specifically years, into the future.
Dentro de cincuenta años, el mundo será muy diferente.
In fifty years, the world will be very different.
In this sentence, 'cincuenta' denotes a specific amount of money or price.