- to chair along with another person or persons.
- a cochairperson.
Origin of cochair
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for co-chair
“There can be no more failure of imagination,” said former New Jersey Governor and Commission co-chair Tom Kean.The 9/11 Commission Is Back With a New Warning for America
July 23, 2014
Allan Mayer, American Apparel's co-chair, seemingly laughed at Charney's plea, labeling him "a dreamer."American Apparel’s Dov Charney Speaks for First Time Since Firing
The Fashion Beast Team
June 24, 2014
This brings us to Dr. Robert H. Eckel, the co-chair of the Working Group.
The second is the conflict of interest (and curious beliefs) of Robert Eckel—the co-chair of the panel that wrote the guidelines.
David G. Johnson, co-chair of the museum's board, announced the departure.Jeffrey Deitch Out at MOCA
July 25, 2013