crowd; large group of people
A somewhat formal or literary term for a crowd or multitude of people. Not as common in everyday speech as 群衆 or 人混み.
広場には多衆が集まっていた。
A large crowd had gathered in the square.
Composed of 多 (many) and 衆 (multitude, masses). The exact historical derivation is uncertain, but the combination directly conveys the meaning of a large group of people.