1. [ verb ] get involved, so as to alter or hinder an action, or through force or threat of force
Synonyms: interfere step_in interpose

"Why did the U.S. not intervene earlier in WW II?"

Related terms: interact meddle poke_into interlope intervention
2. [ verb ] be placed or located between other things or extend between spaces and events

"This interludes intervenes between the two movements" "Eight days intervened"

Related terms: lie
3. [ verb ] occur between other event or between certain points of time

"the war intervened between the birth of her two children"

Related terms: anticipate
Similar spelling:   intervention