座无虚席

lit. a banquet with no empty seats / full house / capacity crowd / standing room only

seat / base / stand / (archaic) suffix used in a respectful form of address, e.g. 师座|师座[shi1 zuo4] / CL:個|个[ge4] / classifier for buildings, mountains and similar immovable objects

not to have / no / none / not / to lack / un- / -less

emptiness / void / abstract theory or guiding principles / empty or unoccupied / diffident or timid / false / humble or modest / (of health) weak / virtual / in vain

surname Xi

woven mat / seat / banquet / place in a democratic assembly / classifier for banquets, conversations etc

variant of 席[xi2] / woven mat