intrude
verb.
enter uninvited
They intruded on our dinner party|She irrupted into our sitting room
Synonym: irrupt
verb.
enter unlawfully on someone's property
Don't trespass on my land!
Synonym: trespass
verb.
search or inquire in a meddlesome way
This guy is always nosing around the office
Synonym: horn in, nose, poke, pry
verb.
thrust oneself in as if by force
The colors don't intrude on the viewer
Synonym: obtrude