The holiday is called "Guy Fawkes Day" for a 17th century man who played a leading role in a plot to blow up the British Parliament buildings. Fawkes managed to hide 20 barrels of gunpowder …

3 days ago · When used of animals, guy usually refers to either a male or one whose gender is not known; it is rarely if ever used of an animal that is known to be female. The matching term …

(Definition of guy from the Cambridge Academic Content Dictionary © Cambridge University Press)

Informal. a man or boy; fellow. He's a nice guy. Informal. none guys people, regardless of their gender. Could one of you guys help me with this? Chiefly British Slang. a grotesquely dressed …

Definition of guy noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

A man is an adult male human. [a][2][3] Before adulthood, a male child or adolescent is referred to as a boy. Like most other male mammals, a man's genome usually inherits an X chromosome …

guy2 (gī), n., v., guyed, guy•ing. n. a rope, cable, or appliance used to guide and steady an object being hoisted or lowered, or to secure anything likely to shift its position. v.t. to guide, steady, …

There are three meanings listed in OED's entry for the noun guy, two of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

A guy is a rope or wire that has one end fastened to a tent or pole and the other end fixed to the ground, so that it keeps the tent or pole in position.

He seems like a nice guy. Who's that guy she's with? It's hard to tell the good guys [=the heroes] from the bad guys [=the villains] in this movie.