|Origin:||Perhaps from sheltron 'group of fighting soldiers protected by shields' (11-16 centuries), from Old English scieldtruma, from scield 'shield' + truma 'group of soldiers'|
a place to live, considered as one of the basic needs of life:
They are in need of food and shelter.
protection from danger or from wind, rain, hot sun etc
We reached the shelter of the caves.
in/into/under etc the shelter of something
They were standing under the shelter of a huge tree.
The men took shelter in a bombed-out farmhouse.
All around me, people were running for shelter.
a building where people or animals that have nowhere to live or that are in danger can stay and receive help
a shelter for battered women
a homeless shelter (=for people who have no homes)
a building or an area with a roof over it that protects you from the weather or from danger
air-raid/bomb/fall-out shelter (=a place to keep people safe from bombs dropped by planes)
bus shelter British English (=a small structure with a roof where you wait for a bus)