to death (死ぬほど): She was worried to death about her son. (彼女は息子のことで死ぬほど心配していた) - 試験に出る! 英単語検索辞書

to death (死ぬほど): She was worried to death about her son. (彼女は息子のことで死ぬほど心配していた)

She was worried to death about her son.