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to burn; to kindle; to light (a fire); to make (a fire)
to heat (a bath); to light (a stove); to stoke (a boiler)
to use (a camera flash)
お香を焚いて部屋を清めてリラックスした。
I burned incense to purify the room.
寒い冬には毎晩風呂を焚く。
Heat up the bath every night during cold winter.
神社でお焚き上げの儀式をした。
We had a ritual burning at the shrine.