fleshy fruit
all or most of ovary wall is soft or fleshy at maturity
berry
entire pericarp is fleshy, there may be one or many seeds (grape, tomato, avocado)
pepo
modified berry with hard, thick rind (watermelon, pumpkin, squash)
hesperidium
modified berry with leathery rind and parchment like partitions between sections (orange, lemon, grapefruit)