Intervene

v. i.	1.	[imp. & p. p. Intervened ; p. pr. & vb. n. Intervening.]
	1.	To come between, or to be between, persons or things; - followed by between; as, the Mediterranean intervenes between Europe and Africa.
	2.	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.
	3.	To interpose; as, to intervene to settle a quarrel.
	4.	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.
v. t.	1.	To come between. Self-sown woodlands of birch, alder, etc., intervening the different estates. - De Quincey.
n.	1.	A coming between; intervention; meeting.

Verb	1.	intervene - get involved, so as to alter or hinder an action, or through force or threat of force; "Why did the U.S. not intervene earlier in WW II?" Synonyms: step in, interfere, interpose
	2.	intervene - be placed or located between other things or extend between spaces and events; "This interludes intervenes between the two movements"; "Eight days intervened"
	3.	intervene - occur between other event or between certain points of time; "the war intervened between the birth of her two children"

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