interfering (Adjective) — Intrusive in a meddling or offensive manner. ex. "an interfering old woman"
interfering (Verb) — Come between so as to be hindrance or obstacle. ex. "Your talking interferes with my work!"
interfering (Verb) — Get involved, so as to alter or hinder an action, or through force or threat of force. ex. "Why did the U.S. not interfere earlier in WW II?"