Raincoat and Ulster

Raincoat noun - A coat made of water-resistant material.

Ulster and raincoat are semantically related In some cases you can use "Ulster" instead a noun "Raincoat".

Ulster noun - Loose long overcoat of heavy fabric; usually belted.

Raincoat and ulster are semantically related in personal outerwear topic. You can use "Raincoat" instead a noun "Ulster", if it concerns topics such as heavy coat.