To come between, or to be between, persons or things;
– followed by between; as, the Mediterranean intervenes between Europe
and Africa.

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.

To interpose; as, to intervene to settle a quarrel.

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.

To come between.

A coming between; intervention; meeting.