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English definition of “grandfathered”


adjective     /ˈɡrænfɑːðəd/ US LAW
an activity, person, group, etc. that is grandfathered is not covered by a new law because of a grandfather clause: Current investors will be grandfathered so the old rules apply to their existing accounts.
(Definition of grandfathered adjective from the Cambridge Business English Dictionary © Cambridge University Press)
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