遅刻
ちこく (chikoku)
to be late; lateness
noun, suru verb
Example
電車が遅れて、会議に遅刻してしまいました。
でんしゃがおくれて、かいぎにちこくしてしまいました。
Densha ga okurete, kaigi ni chikoku shite shimaimashita.
The train was delayed, and I ended up being late for the meeting.
A very practical word for daily life. Can be used as a noun (遅刻) or as a suru verb (遅刻する). Often paired with してしまう to express regret about being late.