D defs.my
Entry 6 senses · 3 variants Webster, 1913

Intervene

/ĭnˌ-tẽrv-ēn'/ · In·ter·vene · IPA /ˌɪntə(ɹ)ˈviːn/
01 v. i. To come between, or to be between, persons or things; -- followed by between; as, the Mediterranean intervenes between Europe and Africa.
imp. & p. p. Intervened; p. pr. & vb. n. Intervening
  1. 1.
    To come between, or to be between, persons or things; -- followed by between; as, the Mediterranean intervenes between Europe and Africa.
  2. 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. 3.
    To interpose; as, to intervene to settle a quarrel.
  4. 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.
02 v. t. To come between.
  1. 1.
    To come between.[R.]
    “Self-sown woodlands of birch, alder, etc., intervening the different estates.” De Quincey.
03 n. A coming between; intervention; meeting.
  1. 1.
    A coming between; intervention; meeting.[Obs.]