walk-on

US: (wôk′on′, -ôn′)

WordReference Random House Learner's Dictionary of American English © 2025

ˈwalk-ˌon,  n. [countable]

1. a small part in a play, esp. a part without speaking lines.

WordReference Random House Unabridged Dictionary of American English © 2025

walk-on  (wôk′on′, -ôn′), n. 

1. Show Business Also called walk′ing part′. a small part in a play or other entertainment, esp. one without speaking lines. Cf. bit ² (def. 6).
2. Show Business an entertainer or actor who plays such a part.
3. Sport an athlete trying out for a team who has not been drafted, specifically invited, scouted, awarded a scholarship, etc.

• noun, nominal use of verb, verbal phrase walk on 1900–05

Collins Concise English Dictionary © HarperCollins Publishers::

walk-on noun

1. a small part in a play or theatrical entertainment, esp one without any lines
2. (as modifier): a walk-on part