The fruit of certain trees and shrubs (as of the almond, walnut, hickory, beech, filbert, etc.), consisting of a hard and indehiscent shell inclosing a kernel.
A perforated block (usually a small piece of metal), provided with an internal or female screw thread, used on a bolt, or screw, for tightening or holding something, or for transmitting motion. See Illust. of lst Bolt.
The tumbler of a gunlock.
A projection on each side of the shank of an anchor, to secure the stock in place.
I think the average person thinks I'm a nut and I deserve whatever happens to me. Mike Tyson
I'm a nut case, but that is what I believe. Mike Tyson
Today's mighty oak is just yesterday's nut, that held its ground. David Icke
Must is a hard nut to crack, but it has a sweet kernel. Charles Spurgeon
Every nut who kills people has a Bible lying around. If you're looking for violent rape imagery, the Bible's right there in your hotel room. If you just want to look up ways to screw people up, there it is, and you're justified because God told you to. Penn Jillette