to hide something; keep information secret

hide, disguise

to have as one's home; live in (which is more usual)

live in

(of some animals) to pass the whole of the winter in a state like sleep

lie dormant; sleep through cold weather

of hide

conceal; remain unseen

a hidden place where wild animals, birds etc may be observed, e.g. by photographers; (an) animal's skin

conceal; remain unseen