Union official

Wiktionary Word definitions in Wiktionary
n. 1 One who assembles for an official or public purpose. 2 In a British university, a lecturer who takes on the mantle of managing a specific course.

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ At a national conference I met a woman convenor of a local group of refuse collectors; she had ten children. ▪ But the convenor of the arts and culture committee says the meeting will go ahead. ▪ Margaret McGregor, the board's ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
variant of convener (see convene ).