measure word, adjective, numeral, pronoun · measure word for large immovable objects such as buildings, mountains, or bridges

这座山终年积雪，景色十分壮观。

noun, verb · a seat, base, stand, or pedestal

请在大厅里找个空座儿坐下。

noun · a grouping of stars or a star sign

猎户座是北半球冬季最容易辨认的星座。

noun · an archaic suffix used for respectful address to a superior

师座，卑职有要事禀报。