Thesaurus.com
Dictionary.com
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.

U.S. companies spent an estimated $23.5 billion on call and contact center outsourcing in 2025, according to market research firm Precedence Research.

From The Wall Street Journal • Mar. 26, 2026

Lawyers say the trade court keeps a judge on call to act quickly when parties come to court seeking an emergency intervention and that was likely how the refund issue ended up in Eaton’s lap.

From The Wall Street Journal • Mar. 14, 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

New rules will mean reservists remain on call for an extra decade, and lower the threshold for them being called into service.

From BBC • Jan. 15, 2026

“They’re both on call all night,” he informs us.

From "Leah on the Offbeat" by Becky Albertalli

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