the situation in which a person or animal is kept somewhere and is not allowed to leave
captivity
to leave someone when you should stay with them and look after them
abandon
(of some animals) to spend the winter sleeping
hibernate
an absence or too little of something important
deprivation
to change something slightly in order to make it better
adjust
very dirty
filthy
the type of place that a particular animal usually lives in
habitat
relating to the health of the mind, or illnesses of the mind
mental
the condition of being alone, especially when this makes you feel unhappy
isolation
