(gī) noun Naut.
A rope, cord, or the like, as for steadying a mast.
—v.t. To secure, steady, or guide with a guy. [<OF guie <guier, var. of guider guide]

(gī) noun
1. Slang A person; fellow; man.
2. Brit. A person of grotesque appearance.
3. An effigy of Guy Fawkes. See GUY FAWKES DAY.
—v.t. guyed, guy·ing Slang To ridicule; make fun of. [after Guy Fawkes]
—guy′er noun

(gī, Fr. gē)
A masculine personal name. Also Du., Ger., Sp. Gui·do (gē′dō, Dan., Ital., Sw. gwē′dō). [<Celtic, sense]
—Guy de Lusignan (lü·sē·nyä′),
died 1194, French Crusader; king of Jerusalem 1186–92, and of Cyprus.

(gī), Thomas,
1644–1724, English philanthropist; founded Guy's Hospital, London, England.