Sinus and Washbasin

Sinus noun - An abnormal passage leading from a suppurating cavity to the body surface.

Washbasin and sinus are semantically related. In some cases you can use "Washbasin" instead a noun "Sinus".

Washbasin noun - A bathroom sink that is permanently installed and connected to a water supply and drainpipe; where you can wash your hands and face.

Sinus and washbasin are semantically related. Sometimes you can use "Sinus" instead a noun "Washbasin".