Interlope

The homeowner caught the interlope trying to break into his house.

The teacher reprimanded the student who tried to interlope in another group's project.

The new employee was warned not to interlope in the ongoing negotiations with the client.

The doctor warned the patient not to interlope in his medical treatment.

John dislikes it when his mother-in-law tries to interlope in his married life.

The police officer warned the bystanders not to interlope in the crime scene.

The manager warned the employees not to interlope in the meeting.

The interlope was confronted by the woman whose partner he had been seeing secretly.