Meaning of the word "keep someone at arm's length" in English

What does "keep someone at arm's length" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

keep someone at arm's length

US /kiːp ˈsʌm.wʌn æt ˈɑːrmz ˈleŋθ/
UK /kiːp ˈsʌm.wʌn æt ˈɑːrmz ˈleŋθ/
"keep someone at arm's length" picture

Idiom

1.

to avoid being very friendly with someone

Example:
She always keeps everyone at arm's length, even her closest colleagues.
After their argument, he decided to keep her at arm's length.
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