Firth and Tributary

Firth noun - A part of a body of water that extends beyond the general shoreline.

Tributary and firth are semantically related. in narrow body of water topic. In some cases you can use "Tributary" instead a noun "Firth".

Tributary noun - A stream that flows into a larger body of water.

Firth and tributary are semantically related. Sometimes you can use "Firth" instead a noun "Tributary".