1. a small building separate from a main house, especially a toilet facility without plumbing
2. any small building that is separate from but belongs to a main building

Examples

• The old farmhouse had an outhouse behind the barn.
• Before indoor plumbing, most rural homes relied on an outhouse.
• They converted the outhouse into a storage shed.
• The camp’s outhouse was located down a short path from the cabins.
• Several outhouses dotted the property, including a tool shed and workshop.
• The historic village preserved the original outhouse as part of the museum.