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
1.

garder quelqu'un à distance, tenir quelqu'un à l'écart

to avoid being very friendly with someone

:
She always keeps everyone at arm's length, even her closest colleagues.
Elle garde toujours tout le monde à distance, même ses collègues les plus proches.
After their argument, he decided to keep her at arm's length.
Après leur dispute, il a décidé de la garder à distance.