What does "chairmanship" mean?

The office, or the term, of a chairman.

How do you pronounce "chairmanship"?

Pronounced //ˈtʃɛː.mənˌʃɪp//.

Common synonyms include: archbishopric, aristocracy, bishopric, board chair, cabinet leadership, chair a meeting.

/ˈtʃɛː.mənˌʃɪp/ noun

noun ·Uncommon ·Advanced level

Noun

1
The office, or the term, of a chairman. countable, uncountable
"Afterwards, Sir Eardly Wilmot had been appointed, from whom, on account of his long chairmanship of quarter-sessions, much had reasonably been expected."
2
the position of chairman wordnet

"Laos held the chairmanship of ASEAN in 2016."

From chairman + -ship.