Fetching details from the dictionary...

aspect; appearance; look
physiognomy (as an indication of one's fortune)
aspect
phase (e.g. solid, liquid and gaseous)
「相」 has other readings with different meanings.
彼は最近とても疲れた相をしている。
He has a tired look.
真剣な相で話を聞いていました。
He was listening with a serious expression.
彼女は今日、嬉しそうな相をしていた。
She has a happy appearance.