expression, ichidan verb
Literally 'to occupy a seat'; used for physically sitting down, often in a formal or deliberate manner.
来賓が次々と座を占めた。
The guests took their seats one after another.
expression, ichidan verb
occupy a position;
Figurative use for assuming or holding a role, such as a committee chair or other official position.
彼は委員長の座を占めている。
He occupies the position of committee chairman.