Synonyms for intervention

noun

• the act or fact of interposing one thing between or among others
• a policy of intervening in the affairs of other countries
• care provided to improve a situation (especially medical procedures or applications that are intended to relieve illness or injury)
• the act of intervening (as to mediate a dispute, etc.)
• (law) a proceeding that permits a person to enter into a lawsuit already in progress; admission of person not an original party to the suit so that person can protect some right or interest that is allegedly affected by the proceedings