| Main Entry: | |
| Part of Speech: | noun |
| Definition: | substitute |
| Synonyms: | alternate, backup, double, fill-in, pinch hitter, replacement, reserve, stand-by, stand-in, sub, successor |
| Main Entry: | attendant |
| Part of Speech: | noun |
| Definition: | person who serves others |
| Synonyms: | aide, alarm clock, assistant, auxiliary, baby sitter, bird dog, chaperon, companion, custodian, domestic, escort, follower, guide, helper, lackey, nurse, orderly, secretary, servant, understudy, usher, waitperson |
| Antonyms: | boss, manager |
| Main Entry: | fill in |
| Part of Speech: | verb |
| Definition: | act as substitute |
| Synonyms: | deputize, insinuate, interject, interpose, replace, represent, stand in, substract, take the place of, understudy |
| Main Entry: | player |
| Part of Speech: | noun |
| Definition: | person who acts in performance |
| Synonyms: | actor, bit player, entertainer, extra, ham, hambone, impersonator, lead, mime, mimic, performer, playactor, scene stealer, stand-in, star, thespian, trouper, understudy, walk-on |
| Antonyms: | director |
| Main Entry: | standby |
| Part of Speech: | noun |
| Definition: | substitute |
| Synonyms: | assistant, backup, deputy, double, fill-in, pinch-hitter, relief, replacement, reserve, stalwart, stand-in, sub, successor, temp, temporary, understudy |
| Main Entry: | substitute |
| Part of Speech: | noun |
| Definition: | someone or something that takes the place of another |
| Synonyms: | agent, alternate, assistant, auxiliary, backup, changeling, delegate, deputy, dernier ressort, double, dummy, equivalent, expediency, expedient, fill-in, ghost, ghost writer, locum, locum tenens, makeshift, pinch-hitter, procurator, proxy, recourse, refuge, relay, relief, replacement, representative, reserve, resort, resource, stand-in, standby, stopgap, sub, succedaneum, successor, supplanter, supply, surrogate, symbol, temp, temporary, temporary expedient, understudy, vicar |
| Antonyms: | permanent |
| Main Entry: | thespian |
| Part of Speech: | noun |
| Definition: | actor, actress |
| Synonyms: | artist, bit player, character, entertainer, extra, ham, headliner, idol, lead, performer, play-actor, player, star, straight person, thesp, understudy |
| Main Entry: | sub |
| Part of Speech: | noun |
| Definition: | substitute |
| Synonyms: | alternate, auxiliary, backup, below, replacement, second, standby, understudy |
| Main Entry: | stand-in |
| Part of Speech: | noun |
| Definition: | substitute |
| Synonyms: | alternate, backup, double, proxy, second, surrogate, understudy |