CHAIRMAN is validvalid

a male chairperson [n CHAIRMEN] : CHAIRMANSHIP [n] / to chair [v CHAIRMANED, CHAIRMANING, CHAIRMANNED, CHAIRMANNING, CHAIRMANS]

61,710 of 196,601 in NWL2023·also valid in CSW24

the presiding officer at a meeting [n CHAIRMEN] / to act as chairman of [v CHAIRMANED or CHAIRMANNED, CHAIRMANING or CHAIRMANNING, CHAIRMANS]