出勤
しゅっきん · shukkin · JLPT N2 · noun
work
🏢 出 = go out + 勤 = duty/service: going out to your duty = going to work
勤 means duty or service, as in 通勤 (commuting). 出勤 pairs 出 (leave, go out) with 勤 (duty), so it names leaving for your work shift.
出 — foot 止 emerging from enclosure 凵
出 is a pictograph showing a foot or plant stepping out of a hollow or enclosure, depicting the act of going forth. The original sense of 'coming out' or 'emerging' has remained stable since oracle bone script. It now broadly means 'to exit, go out, or produce.'