Meaning of the word "bed base" in English

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

bed base

US /ˈbɛd ˌbeɪs/
UK /ˈbɛd ˌbeɪs/

Noun

the lower part of a bed, which supports the mattress

Example:
We need to buy a new mattress and a matching bed base.
The old bed base was creaking, so we replaced it.