Meaning of the word "gather dust" in English

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

gather dust

US /ˈɡæðər dʌst/
UK /ˈɡæðə dʌst/
"gather dust" picture

Idiom

to be unused for a long time

Example:
My old bicycle is just gathering dust in the garage.
That book has been gathering dust on the shelf for years.