Dictionary and Thesaurus

Definition of Standby

• (noun) something that can be relied on when needed
• (noun) an actor able to replace a regular performer when required
• (adjective satellite) ready for emergency use; "a standby generator"; "a standby crew"

Synonyms of Standby

• Understudy

Antonyms of Standby

Homophones of Standby

• Stand-By