► 動詞
約束 [やくそく] [約束する] meaning: promise rank: 1
☆ 彼は戻ってくると約束した ⇨ He promised to come back
► 名詞
約束 [やくそく] meaning: appointment rank: 1
☆ 明日友達と会う約束をした ⇨ I decided to meet with my friend tomorrow (☛ A personal appointment/arrangement)
約束 [やくそく] [約束を守る] meaning: promise rank: 1
☆ 彼はいつも約束を守る ⇨ He always keeps his promise
約束 [やくそく] [約束を破る] meaning: promise rank: 1
☆ 彼は平気で約束を破る ⇨ He breaks promises with no remorse