Firth and Orifice

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

Orifice and firth are semantically related. in opening topic. In some cases you can use "Orifice" instead a noun "Firth".

Orifice noun - A place in a surface allowing passage into or through a thing.

Firth and orifice are semantically related. Sometimes you can use "Firth" instead a noun "Orifice".