Meaning of the word "Lower back" in English

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

Lower back

US /ˈloʊ.ər bæk/
UK /ˈləʊ.ər bæk/

Noun

the part of the back between the ribs and the hips

Example:
He complained of pain in his lower back after lifting heavy boxes.
Regular exercise can help strengthen your lower back muscles.