Roost is a word that is often associated with birds. It is defined as a place where birds perch or rest. However, there are several synonyms for roost. Some of the commonly used synonyms for this word include perch, nest, resting place, and refuge. A perch is a place where birds rest temporarily while a nest is a more permanent place where birds lay eggs and rear their young. A resting place is a general term that can be used for any spot where birds stop to rest, while refuge implies a place of safety or shelter. All these synonyms have subtle differences in meaning but can be used interchangeably depending on the context.