A cozy home is a place that is comfortable and inviting. COTTAGE, DEN, and NEST are all words that can be used to describe a cozy home. A COTTAGE is a small house, usually in a rural area, that is often used as a vacation home. A DEN is a room in a house that is used for relaxation or recreation. A NEST is a structure built by birds or other animals to provide shelter and protection for their young. All of these words can be used to describe a cozy home, which is a place that is comfortable and inviting.