/ gaɪ; NAmE / noun
1.
[ C ] ( informal ) a man :
a big / nice / tough guy
a Dutch guy
At the end of the film the bad guy gets shot.
—see also fall guy , wise guy
2.
guys [ pl. ] ( informal , especially NAmE ) a group of people of either sex :
Come on, you guys, let's get going!
3.
[ C ] (in Britain) a model of a man dressed in old clothes that is burned on a bonfire on 5 November during the celebrations for Bonfire Night
4.
(also ˈguy rope ) [ C ] a rope used to keep a pole or tent in a vertical position
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IDIOMS
see Mr abbreviation
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WORD ORIGIN
senses 1 to 3 early 19th cent. (in sense 3): named after Guy Fawkes who tried to blow up James I and the Houses of Parliament on 5 November 1605.
sense 4 late Middle English : probably of Low German origin; related to Dutch gei brail and German Geitaue brails (small ropes used to bring down the sail or mast of a boat).