interfere.

To get involved or involve oneself, causing disturbance.

I always try not to interfere with other people’s personal affairs.

Of waves, to be correlated with each other when overlapped or superposed.

Correlated waves interfere to produce interesting patterns, while uncorrelated waves overlap without interfering.

Where the radio-wave signals of the two radio stations interfere the listener hears nothing but noise.

Of a horse, to strike one foot against the opposite foot or ankle by using the legs.

To sexually molest, especially of a child.

The investigation found the girls had been interfered with.