on call

Idioms  

1. Available if summoned, as in Medical residents are required to be on call at least three nights a week. This expression originated as at call in the late 1500s. Also see at someone's beck and call.

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Example Sentences

See Examples For:

on call

The interest rate on call loans skyrocketed to 74%.

From The Wall Street Journal ● Oct. 9, 2026

Nevertheless, the assistants were on call 24/7, Anya says.

From BBC ● Jul. 18, 2026

California requires that a veterinarian to be present or nearby and on call.

From Los Angeles Times ● Jun. 9, 2026

She’s on call for emergencies at all times.

From The Wall Street Journal ● May 13, 2026

You’re always on call, just like the fire department is always on call.

From Each Little Bird That Sings by Deborah Wiles

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