century
The Spanish word 'siglo' mirrors the English term 'century', referring to a period of 100 years. It's used just as in English, to designate centuries in history. For instance, 'siglo XX' means '20th century'. Besides, it's also appropriate to use it in expressions like 'todos los siglos' meaning 'every century' and 'medio siglo' meaning 'half a century'.
We live in the 21st century.
This sentence uses 'siglo' to indicate 'century'. The roman numerals 'XXI' represents 21, so 'siglo XXI' is the 21st century.
The 19th century was a time of great change.
None
Technology has advanced a lot in this century.
'Este siglo' means 'this century' and refers to the current century during which the speaker is speaking.
We are at the beginning of the century.
In this sentence, 'siglo' translates to 'century' and 'al inicio del siglo' means 'at the beginning of the century'.
The last century was very different from the current one.
'El siglo pasado' means 'the last century', referring to the previous century before the current one.
The next century will be exciting.
'El próximo siglo' means 'the next century', which refers to the coming 100-year period.
The 17th century was the Golden Age in Spain.
'El siglo XVII' means 'The 17th century'. The 'Golden Age' is a period in a nation's history marked by notable achievements.
The Age of Enlightenment was a time of illumination.
'El siglo de las luces' translates directly to 'The century of lights' but it's commonly known as 'The Age of Enlightenment', a period in history known for intellectual and philosophical advancements.
We are at the end of the century.
'Estamos a finales del siglo.' means 'We are at the end of the century'; this indicates that the current century is drawing to a close.
The 20th century was the century of the world war.
Here, 'siglo XX' and 'siglo de la guerra mundial' both employ 'siglo' to refer to periods in history, the 20th century and the time of the world war, respectively.