Catarrh and Head cold

Catarrh noun - Inflammation of the nose and throat with increased production of mucus.

Head cold and catarrh are semantically related. In some cases you can use "Head cold" instead a noun "Catarrh".

Head cold noun - A common cold affecting the nasal passages and resulting in congestion and sneezing and headache.

Catarrh and head cold are semantically related. You can use "Catarrh" instead a noun phrase "Head cold".