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yawn; yawning
kanji "yawning" radical (radical 76)
退屈な授業で欠伸が出てしまった。
I yawned during the boring class.
欠伸をしている人を見ると移ってしまう。
When I see someone yawning, it's contagious.
会議中に欠伸をするのは失礼ですよ。
It's rude to yawn during a meeting.