1. The fruit of an American tree, so called from its oily nature.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• betterbut,
• botternut,
• bitter nut,
• butterburt,
• butturbur,
• butternat,
• vutternut,
• nutternut,
• hutternut,
• gutternut,
• b7tternut,
• burternut,
• bufternut,
• bugternut,
• buternut,
• buttenut,
• buttternut,
• butter nut,
• butternutz,
• butternust

• butyrin,
• buttoned,
• bitternut,
• butterfat,
• buttermilk,
• bittern,
• Buttered,
• buttram,
• butter up,
• buitron,
• buttercup.

The adjective form of the word "butternut" is "butternutty".

The plural of the "butternut" can be the "butternuts".

The singular of the "butternut" can be the "butternut".