CEFR B2
backup man
noun
Meaning
A person who is trained or prepared to do a job if the main person is unable to, or a person who supports another in a particular role.
Examples
- The understudy was ready to go on stage as the backup man for the lead actor.
- She was hired as a backup man for the project manager in case of emergencies.
Synonyms: substitute, replacement, deputy, stand-in