keep (one) at arm's length

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keep (one) at arm's length

To keep one a certain distance away, either physical or figurative, in order to afford a level of safety or security or to prevent intimacy. John always keeps his friends at arm's length, so that no one gets close enough to hurt his feelings. My daughter likes to watch me cook, but I make sure to keep her at arm's length so she doesn't get close to anything hot.

keep someone at arm's length

If you keep someone at arm's length, you avoid being friendly with them or getting emotionally involved with them. Brian felt more guilt than grief. He'd tried to get close, but his father had kept him at arm's length.

keep someone or something at arm's length

avoid intimacy or close contact with someone or something.

See also: keep, length, someone, something

keep somebody at arm’s ˈlength

avoid becoming too friendly with somebody: He’s the kind of man who’s best kept at arm’s length.

keep at arm's length, to

To avoid familiarity, to keep someone at a distance. This expression, with its inevitable image of extending one’s arm to push someone away, has long been used figuratively to signify distancing oneself from a problem, group, political stand, and so forth. In the sixteenth century it was put as at arm’s end, as Sir Philip Sidney had it in Arcadia (1580), but by the mid-seventeenth century it began to appear as at arm’s length.