The term 'communicable' is used to describe a range of illnesses and diseases that can be spread from one person to another. The crossword solutions for this term include 'EPIDEMIC' (8 letters), 'DEADLY' (6 letters), 'PESTILENTIAL' (12 letters), 'INFECTIOUS' (10 letters), 'TRANSFERABLE' (12 letters), 'TRANSMISSIBLE' (13 letters), 'CATCHING' (8 letters), 'ENDEMIC' (7 letters), and 'EXPANSIVE' (9 letters). All of these words refer to the ability of a disease or illness to be spread from one person to another, either directly or indirectly. Additionally, 'CONTAGIOUS' (10 letters) is another word that is often used to describe communicable diseases.