Verb

(interfer)

To get involved or involve oneself, causing disturbance.

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

(physics) (of waves) To be correlated with each other when overlapped]] or [[superpose, 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.

(mostly of horses) To strike one foot against the opposite foot or ankle in using the legs.

Verb

(invad)

To move into.

Under some circumstances police are allowed to invade a person's privacy.

* Spenser

Which becomes a body, and doth then invade / The state of life, out of the grisly shade.

To enter by force in order to conquer.

Argentinian troops invaded the Falkland Islands in 1982.

* {{quote-news

, year=2012 , date=April 26 , author=Tasha Robinson , title=Film: Reviews: The Pirates! Band Of Misfits : , work=The Onion AV Club citation , page= , passage=When a typical gaffe has him invading the Beagle and trying to rob Charles Darwin (David Tennant), he learns that his beloved “parrot” Polly is actually a dodo bird. }}

To infest or overrun.

The picnic was invaded by ants.

To attack; to infringe; to encroach on; to violate.

The king invaded the rights of the people.