to exist or live

होना

English Usage: I want to be happy.

Hindi Usage: मैं खुश होना चाहता हूँ।

a tropical fruit

केला

English Usage: She ate a banana for breakfast.

Hindi Usage: उसने नाश्ते में केला खाया।

crazy or silly

पागल

English Usage: That idea is just plain banana.

Hindi Usage: वह विचार तो बस पागलपन है।