Bolthole refers to a place of refuge or escape in times of danger. Some synonymous terms for Bolthole include hideaway, retreat, sanctuary, safety, refuge, haven, shelter, and oasis. Each term refers to a safe place in the event of an emergency or unsafe situation. A hideaway is a secluded place that provides privacy and security. A retreat is a quiet and peaceful sanctuary for relaxation or reflection. A sanctuary is a protected area that provides safety to people or animals. A refuge is a place of safety and protection from danger or distress. A haven is a place of comfort and safety from danger. A shelter is a structure designed to provide protection from the elements. An oasis is a green spot in a desert offering relief from the heat and dryness.