IPA: /ˈɡræsi/
KK: /ˈgræsi/
Having a lot of grass or being covered with grass.
The children played on the grassy field all afternoon.
Comparative: grassier
Superlative: grassiests
Grassy → It is formed from "grass" (from Old English *græs*, meaning herb or plant) and "-y" (meaning characterized by). The word "grassy" means characterized by or covered with grass.
Think of the word 'grass' which refers to the green plant, and remember that 'grassy' describes something that is covered with or has a lot of grass.