An audience or crowd of onlookers — people gathered to watch a performance, event, or spectacle.
試合が始まると観衆は一斉に歓声を上げた。
When the match started, the spectators all cheered at once.
観衆が増えてステージ周辺は身動きが取りにくくなった。
As the crowd grew, it became hard to move around the stage area.
彼は観衆の前で短いスピーチをした。
He gave a short speech in front of the audience.