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to boil (something in hot water)
to treat with medicinal steam (a swelling, etc.)
朝食に卵を茹でてサラダと一緒に食べた。
I boiled eggs for breakfast and ate them with salad.
卵を水に入れて10分間茹でました。
I boiled the eggs for 10 minutes.
パスタを茹でる時間は八分だ。
The time to boil pasta is eight minutes.