Meaning of the word postbag in English

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

postbag

US /ˈpoʊst.bæɡ/
UK /ˈpoʊst.bæɡ/

Noun

1.

the number of letters received at one time or on one subject:

Example:
It was clear from our postbag that viewers were unhappy about the program.
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