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Definitions

on call

ADJECTIVE
ready to work
Synonyms
WEAK
accessible at hand at one's beck and call at one's disposal at one's fingertip available handy night call on alert on deck on-the-spot prepared standing by within reach

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The team of specialists is on call 24 hours a day to collect the most poorly children and babies and take them to intensive care, supporting 27 hospitals across the south of England.

From BBC • Mar. 4, 2026

I thought it was an injury from Pilates, but, after a couple of weeks of the pain, I went to see the nurse practitioner on call at my doctor’s office.

From The Wall Street Journal • Feb. 13, 2026

Perry Lang cooked for Epstein from around 1998 to 2002, during which time he was “basically on call 24/7,” according to a 2021 FBI interview with Lang included in the files.

From Los Angeles Times • Feb. 11, 2026

Like any sensible American trying to move a boulder up a hill, he has lawyers on call.

From The Wall Street Journal • Feb. 6, 2026

The psychological counselors were on call twenty-four hours a day.

From "The Secret History" by Donna Tartt

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.