co-chair Hear it!

co-chair definition

co-chair (kō c̸her; also, for v.c̸her′)

noun

a person who chairs a committee, meeting, etc. jointly with another or others

transitive verb

to preside at or over as a co-chair

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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