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tip of nose
before one's eyes; under one's nose; in front of
tip (of something)
犬が鼻先を寄せて匂いを嗅いだ。
The dog brought its nose close and sniffed.
寒さで鼻先が赤くなった。
The tip of my nose turned red from the cold.
彼は鼻先で笑いながら私の提案を退けた。
He turned down my proposal with a derisive snort.