standby

noun
stand·​by | \ ˈstan(d)-ˌbī How to pronounce standby (audio) \
plural standbys\ ˈstan(d)-​ˌbīz How to pronounce standbys (audio) \

Definition of standby

 (Entry 1 of 4)

1a : one to be relied on especially in emergencies
b : a favorite or reliable choice or resource
2 : one that is held in reserve ready for use : substitute
on standby
: ready or available for immediate action or use

standby

adjective

Definition of standby (Entry 2 of 4)

1 : held near at hand and ready for use a standby power plant standby equipment
2 : relating to the act or condition of standing by standby duty a standby period
3 : of, relating to, or traveling by an airline service in which the passenger must wait for an available unreserved seat standby passengers a standby ticket

standby

adverb

Definition of standby (Entry 3 of 4)

: on a standby basis fly standby

stand by

verb
stood by; standing by; stands by

Definition of stand by (Entry 4 of 4)

intransitive verb

1 : to be present also : to remain apart or aloof
2 : to be or to get ready to act an ambulance was standing by

transitive verb

: to remain loyal or faithful to : defend stood by his decision

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Synonyms & Antonyms for standby

Synonyms: Noun

anchor, buttress, dependence (also dependance), mainstay, pillar, reliance

Synonyms: Verb

adhere (to), cling (to), hew (to), keep (to), stick (to or with)

Antonyms: Verb

defect (from)

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Examples of standby in a Sentence

Noun

More police officers were sent as standbys. We bought an electric generator as a standby.

Verb

no matter how much people object, I will stand by my decision
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First Known Use of standby

Noun

1796, in the meaning defined at sense 1a

Adjective

1872, in the meaning defined at sense 1

Adverb

1971, in the meaning defined above

Verb

13th century, in the meaning defined at intransitive sense 1

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Statistics for standby

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Time Traveler for standby

The first known use of standby was in the 13th century

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More Definitions for standby

standby

noun

English Language Learners Definition of standby

 (Entry 1 of 2)

: a person or thing that is available especially in emergencies

standby

adjective

English Language Learners Definition of standby (Entry 2 of 2)

: relating to or traveling by an airline service in which the passenger must wait for an available seat

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More from Merriam-Webster on standby

Rhyming Dictionary: Words that rhyme with standby

Thesaurus: All synonyms and antonyms for standby

Spanish Central: Translation of standby

Nglish: Translation of standby for Spanish Speakers

Britannica English: Translation of standby for Arabic Speakers

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