vt to come between.
2. intervene ·noun a coming between; intervention; meeting.
3. intervene ·vi to interpose; as, to intervene to settle a quarrel.
4. intervene ·vi in a suit to which one has not been made a party, to put forward a defense of one's interest in the subject matter.
5. intervene ·vi to come between, or to be between, persons or things;
followed by between; as, the mediterranean intervenes between europe and africa.
6. intervene ·vi to occur, fall, or come between, points of time, or events; as, an instant intervened between the flash and the report; nothing intervened ( ·i.e., between the intention and the execution) to prevent the undertaking.