1.Definition: a small (usually square or hexagonal) metal block with internal screw thread to be fitted onto a bolt

Category: Objects

2.Definition: a whimsically eccentric person

Related Noun(s):crackpot, crank, fruitcake, nut case, screwball

Category: People

3.Definition: Egyptian goddess of the sky

Category: People

4.Definition: half the width of an em

Related Noun(s):en

Category: General

5.Definition: one of the two male reproductive glands that produce spermatozoa and secrete androgens

Related Noun(s):ball, ballock, egg, orchis, testis

Category: General

6.Definition: someone who is so ardently devoted to something that it resembles an addiction

"A golf addict", "A car nut", "A bodybuilding freak", "A news junkie"

Related Noun(s):addict, freak, junkie, junky

Category: People

7.Definition: usually large hard-shelled seed

Category: Plants