Originally a small line or dot above a longer line, indicating "up". The vertical line was added to distinguish the character from 二 (two). Opposite of 下.
Depicts a knife (刂) cutting a gem into two halves (玨), based on the original meaning "to divide". The meaning later shifted to "division", "group", and "team".
Example sentences
Tom今天没来上班。 — Tom didn't show up for work today.
我今天不想上班。 — I don't feel like working today.
你明天几点上班？ — What time are you going to work tomorrow?