What does "chairperson" mean?

A chairman or chairwoman, someone who presides over a meeting, board, etc.

Chairperson

Common synonyms include: chair, board chair, chair a meeting, chair the board, chair the panel, chairman.

noun

noun ·3 syllables ·Rare ·Advanced level

Noun

1
A chairman or chairwoman, someone who presides over a meeting, board, etc.
"She was the chairperson of the board and she presided over the meeting."
2
the officer who presides at the meetings of an organization wordnet

"The chairperson ordered silence."

From chair + person, after chairman and chairwoman.