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to get up; to rise; to blaze up (fire)
to wake up; to be awake; to stay awake
to occur (usu. of unfavourable incidents); to happen; to take place
休みの日でも早く起きるよ。
I get up early even on days off.
毎朝六時に起きていますか。
Do you wake at 6 every morning?
昨日は寝坊して遅く起きた。
Yesterday I overslept and got up late.