1. Plural of narrowboat; long, narrow boats used for recreational or residential purposes on inland waterways, especially canals in the United Kingdom.
Usage: chiefly British; typically 57–70 feet long and 6–7 feet wide; often used as houseboats or for leisure cruising

Examples

• Many families live on narrowboats moored along the canal.
• The narrowboats were painted in bright, traditional colors.
• We rented narrowboats for a week-long holiday on the waterways.
• Narrowboats are a popular way to explore England's canal network.
• The marina had dozens of narrowboats available for charter.
• She converted an old narrowboat into a cozy floating home.