元となった辞書の項目
開ける
verb
to broaden; to become wide / to develop; to progress; to improve / (of a person) to be enlightened; to be inspired; (perfect tense) to be sharp or clever
意味（1）
to broaden; to become wide
意味（2）
to develop; to progress; to improve
意味（3）
(of a person) to be enlightened; to be inspired; (perfect tense) to be sharp or clever
