communist

UK: 'communist', 'Communist': /ˈkɒmjʊnɪst/

US: /ˈkɑmjənɪst/

US: (kom′yə nist)

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

com•mu•nist /ˈkɑmyənɪst/   n. [countable]

1. Government a member of a Communist Party:
   [Communist] The Communists couldn't get a majority.
2. Government a supporter or advocate of communism.
3. Government a person regarded as supporting leftist causes.

adj. 

4. Government [Communist] of or relating to a Communist Party or to Communism.
5. Government relating to communists or communism.

com•mu•nis•tic, adj. 

WordReference Random House Unabridged Dictionary of American English © 2025

com•mu•nist  (kom′yə nist), n. 

1. Government (cap.) a member of the Communist party or movement.
2. Government an advocate of communism.
3. Government a person who is regarded as supporting politically leftist or subversive causes.
4. Government (usually cap.) a Communard.

adj. 

5. Government (cap.) of or pertaining to the Communist party or to Communism.
6. Government pertaining to communists or communism.

• French communiste. See common, -ist
• 1835–45

com′mu•nis′tic, com′mu•nis′ti•cal, adj. 
com′mu•nis′ti•cal•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

communist / ˈkɒmjʊnɪst/ noun

1. a supporter of any form of communism
2. (often capital) a supporter of Communism or a Communist movement or state
3. (often capital) a member of a Communist party
4. (often capital) any person holding left-wing views, esp when considered subversive
5. a person who practises communal living; communalist

adjective

1. of, characterized by, favouring, or relating to communism; communistic