intervene

Meanings

Verb

• 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?"
• be placed or located between other things or extend between spaces and events
  • "This interludes intervenes between the two movements"
  • "Eight days intervened"
• occur between other event or between certain points of time
  • "the war intervened between the birth of her two children"

Synonyms

interfere, interpose, step in