Meaning of the word "semi trailer" in English

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

semi trailer

US /ˈsɛmi ˌtreɪlər/
UK /ˈsɛmi ˌtreɪlə/

Noun

a truck that consists of a tractor unit and a detachable trailer, used for transporting goods

Example:
A large semi-trailer was parked by the loading dock.
The company uses a fleet of semi-trailers to deliver goods across the country.