verb🔗ShareTo be, or act as, a grandfather to."Because Maria's older brother had already started at the school before the new uniform policy was implemented, he was grandfathered in and didn't have to buy the new uniform. "lawgovernmentpoliticsbusinessChat with AIVocabulary GamePractice Reading
verb🔗ShareTo retain discontinued laws or rules for (a thing, person or organization previously affected by them)."Since he had started the program before the new rules were implemented, he was grandfathered in and didn't need to complete the extra courses. "politicsgovernmentlawhistoryorganizationChat with AIVocabulary GamePractice Reading