say it: kuhn-TAY-juhs
contagious is an adjective meaning "easily diffused or spread as from one person to another". It carries 2 recorded senses.
(of disease) capable of being transmitted by infection
Definitions, synonyms and semantic relations for contagious come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.