The Coconut Palm (Cocos nucifera) is a member of the family Arecaceae (palm family). It is the only species in the genus Cocos, and is a large palm, growing to 30 m tall, with pinnate leaves 4–6 … see full wiki
The coco-nut nut is a giant nut but if you eat too much of it, you'll get a little sick. The co-co-nut nut is a BIG BIG Nut but this delicious "Nut" is not a Nut! It's a coco-fruit, from the coco-tree from the cocoa family!