object lessonEnglishOxford Dictionary of Englishobject lesson /ˈɒbdʒɪkt lɛsn , ˈɒbdʒɛkt lɛsn/ ▸ noun a striking practical example of a principle or ideal: they responded to daily emergencies in a way that was an object lesson to us all.
EnglishOxford Dictionary of EnglishEnglishOxford Dictionary of English
EnglishOxford Dictionary of English