Meaning of the word portcullis in English

What does portcullis mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

portcullis

US /ˌpɔːrtˈkʌl.ɪs/
UK /ˌpɔːtˈkʌl.ɪs/
"portcullis" picture

Noun

a strong, heavy grating that can be lowered to block a gateway, especially in a castle.

Example:
The portcullis of the ancient castle was lowered to prevent intruders.
The heavy portcullis clanged shut, sealing off the entrance.