This is the 8705th most frequent Spanish word.
siglo
Century.
Here, 'siglo' is used to denote a specific century in a historical context.
El siglo XX estuvo lleno de avances tecnológicos.
The 20th century was full of technological advancements.
In this example, 'siglo' refers to the current century, emphasizing its characteristics.
Estamos viviendo en el siglo XXI, la era de la información.
We are living in the 21st century, the information era.
Here, 'siglos' is employed in a plural form to express a long passage of time comprising multiple centuries.