<p><strong>Noun:</strong></p><ul><li>Civil Law: any prohibitory act or decree of a court or an administrative officer.</li><li>Roman Catholic Church: a punishment by which the faithful, remaining in communion with the church, are forbidden certain sacraments and prohibited from participation in certain sacred acts.</li><li>Roman Law: a general or special order of the Roman praetor forbidding or commanding an act, especially in cases involving disputed possession.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>to forbid; prohibit.</li><li>Ecclesiastical: to cut off authoritatively from certain ecclesiastical functions and privileges.</li><li>to impede by steady bombardment: Constant air attacks interdicted the enemy's advance.</li></ul>