Tarpaulin and Water dog

Tarpaulin noun - Waterproofed canvas.

Water dog and tarpaulin are semantically related In some cases you can use "Water dog" instead a noun "Tarpaulin".

Water dog noun - A dog accustomed to water and usually trained to retrieve waterfowl.

Tarpaulin and water dog are semantically related in sailor topic. Sometimes you can use "Tarpaulin" instead a noun phrase "Water dog", if it concerns topics such as person who travels by sea.