n (context|Jewish|_|history) A special year of emancipation supposed to be kept every fifty years, when farming was abandoned and Hebrew slaves were set free. (defdate|from 14th c.)
n (context|Catholicism) A special year (originally held every hundred years, then fifty, and then fewer) in which remission from sin could be granted as well as indulgences upon making a pilgrimage to Rome. (defdate|from 15th c.)