All 4 Uses

squatter
in
Strength in What Remains
(Auto-generated)

TWO New York City, 1994 Deo felt he wasn't really here, as he left the abandoned tenement in the morning and saw the empty bottles and remnants of dinner and soiled babies' diapers that other squatters left behind, and the roaches and rats that skittered away as he passed by.†
Chpt 1.2

squatters = people who live in an unoccupied place without the legal right
At night the adjacent rooms filled up with other squatters.†
Chpt 1.2 *
After he'd spent a few nights there, one of the squatters told Deo he had to pay him rent.†
Chpt 1.2
On a morning soon afterward, another of the squatters came up holding a knife and asked Deo for money.†
Chpt 1.2

Definitions:

(1) (squatter)
someone who lives in an unoccupied place without the legal right

In most countries, if squatters are able to stay long enough, they will acquire legal title.
(2) (meaning too rare to warrant focus)
Less commonly, squatter can refer to a type of insect or to a person who is crouching.