Online English Dictionary

1. 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?"

2. be placed or located between other things or extend between spaces and events; "This interludes intervenes between the two movements"; "Eight days intervened"

3. occur between other event or between certain points of time; "the war intervened between the birth of her two children"

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