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Definitions

standby

[stand-bahy] / ˈstændˌbaɪ /
NOUN
substitute
Synonyms
STRONG
assistant backup deputy double fill in relief replacement reserve stalwart stand-by stand-in sub successor temp temporary understudy
WEAK
pinch-hitter recourse

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.

While previous methods depended on high-powered lasers, this effect can be triggered with microwatts of power, far less than what a smartphone uses in standby mode.

From Science Daily • Mar. 27, 2026

President Lai Ching-te was on standby in Taipei, taking calls at extreme hours due to the different time zones.

From The Wall Street Journal • Mar. 23, 2026

That routine was becoming normal, he said, though the engine crew was being kept on standby, ready to "fire up our engines" in case of emergency.

From Barron's • Mar. 12, 2026

Also at the hotel on Monday evening was migration agent Melody Naghmeh Danai, on standby to assist those choosing to stay about their options.

From BBC • Mar. 11, 2026

Six thousand militiamen were put on standby in nearby armories.

From "A Few Red Drops: The Chicago Race Riot of 1919" by Claire Hartfield

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