(aviation, slang) The nut that holds the main rotor to the mast of some helicopters. / (slang, figuratively) A single point of failure with catastrophic consequences.

plural of nut butter

Any of the pine trees that bear pine nuts.

plural of nut pine

Nuts left over in trees after harvesting.

Alternative form of nuthouse

The nut of the coquito palm.

A confection containing nuts and sweeteners formed in a bar shape. / Alternative form of nut-bar.

Alternative form of nut-bar, alternative form of nutbar (“crazy”).

(informal) Crazy, mad.