commentator

UK: /ˈkɒmənteɪtə^r/ US: /ˈkɑmənˌteɪtɚ/ ,(kom′ən tā′tər)

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

com•men•ta•tor /ˈkɑmənˌteɪtɚ/   n. [countable]

1. Show Business a person who discusses news, sports events, or other topics on television or radio:
   a TV sports commentator.

WordReference Random House Unabridged Dictionary of American English © 2025

com•men•ta•tor  (kom′ən tā′tər), n. 

1. Show Business a person who discusses news, sports events, weather, or the like, as on television or radio.
2. a person who makes commentaries.

• Late Latin commentātor interpreter, equivalent. to commentā(rī) to interpret (Latin: to think about, prepare, discuss, write, perh. frequentative of comminīscī to devise; see comment) + Latin -tor -tor
• 1350–1400; Middle English

com•men•ta•to•ri•al  (kə men′tə tôr′ē əl, -tōr′-), adj.  com•men′ta•to′ri•al•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

commentator / ˈkɒmənˌteɪtə/ noun

1. a person who provides a spoken commentary for a broadcast, film, etc, esp of a sporting event
2. a person who writes notes on a text, event, etc