nest

a structure in which animals lay eggs or give birth to their young

a kind of gun emplacement; "a machine-gun nest"; "a nest of snipers"

a cosy or secluded retreat

a gang of people (criminals or spies or terrorists) assembled in one locality; "a nest of thieves"

furniture pieces made to fit close together

inhabit a nest, usually after building; "birds are nesting outside my window every Spring"

fit together or fit inside; "nested bowls"

move or arrange oneself in a comfortable and cozy position; "We cuddled against each other to keep warm"; "The children snuggled into their sleeping bags"

gather nests