Meaning of the word "back breaking" in English

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

back breaking

US /ˈbækˌbreɪkɪŋ/
UK /ˈbækˌbreɪkɪŋ/

Adjective

physically demanding and exhausting

Example:
Farming can be a back-breaking job.
They spent hours doing back-breaking labor in the fields.