decreased; became fewer or less
今年は昨年より事故が減った。
There were fewer accidents this year than last year.
殺人事件が減ったな
The number of murder cases has gone down.
— 別れる決心 (2022)
笑顔が減ったぞ
You’re smiling less these days.
— 帰ってきたヒトラー (2015)