tikva

1. squash; gourd; pumpkin
   Baka je napravila pitu od tikve. — Grandma made a squash pie.
   U bašti nam ove godine rastu velike tikve. — Big squashes are growing in our garden this year.
2. colloq. humor. head; noggin
   Udario sam se u tikvu o vrata. — I banged my noggin on the door.
3. colloq. derog. (of a person) dimwit; blockhead
   Ne slušaj ga, on je prava tikva. — Don't listen to him, he's a real dimwit.

Zucchini is tikvica; the orange pumpkin is more often called bundeva.