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to pass (the night); to spend
to reveal; to divulge; to disclose; to expose
to prove; to verify
友人と語り明かした夜を思い出す。
I recall the night I spent talking with a friend.
彼女は秘密を明かすことを拒んだ。
She refused to reveal the secret.
泣き明かした朝が来た。
Dawn came after a night of weeping.