homeless

无家可归的、没有房子住的

Thousands of homeless people sleep in shelters every winter.

每年冬天都有数千名无家可归的人在收容所过夜。

流离失所的多指天灾或战乱后

The earthquake left more than two hundred families homeless.

这场地震让两百多户家庭流离失所。

无主的、没人养的指动物

She volunteers at a shelter that takes in homeless cats.

她在一家收容无主猫咪的中心当志工。

无家可归者、街友the homeless，作复数

The city has opened a new center to help the homeless.

市政府开设了一处新据点，协助街友。