fungus

US /ˈfʌŋ.ɡəs/
UK /ˈfʌŋ.ɡəs/
"fungus" picture
1.

champignon

any of a group of spore-producing organisms feeding on organic matter, including molds, yeast, mushrooms, and toadstools

:
Mushrooms are a type of fungus.
Les champignons sont un type de champignon.
The damp conditions encouraged the growth of fungus on the walls.
Les conditions humides ont favorisé la croissance de champignons sur les murs.