co·me·di·an (k?-m??d?-?n)n.1. A professional entertainer who tells jokes or performs various other comic acts.2. An actor in comedy.3. A writer of comedy.4. A person who amuses or tries to be amusing; a clown.[French comédien, player, comedian, from comédie, comedy, from Medieval Latin c?m?dia; see comedy.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.comedian (k??mi?d??n) n1. (Theatre) an entertainer who specializes in jokes, comic skits, etc2. (Theatre) an actor in comedy3. an amusing or entertaining person: sometimes used ironicallyCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014co?me?di?an (k??mi di ?n) n. 1. a professional entertainer who makes an audience laugh as by telling jokes. 2. an actor in comedy. 3. a person who amuses others. [1575?85;