Definition of fifty-year rule in English:

fifty-year rule

Line breaks: fifty-year rule

noun

British historical
A rule that public records may be open to inspection after a lapse of fifty years. Superseded in the UK in 1968 by the thirty-year rule.
More example sentences
  • Like Time on the Cross, another work satisfying the fifty-year rule, Growing Public is in two volumes.

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Pronunciation: ˈapəzɪt
adjective
apt in the circumstances or relation to something