Definition of "Giant" :

noun: any creature of exceptional size

noun: an unusually large enterprise

"Walton built a retail giant."

noun: a very bright star of large diameter and low density (relative to the Sun)

noun: an imaginary figure of superhuman size and strength; appears in folklore and fairy tales

noun: a person of exceptional importance and reputation

noun: someone or something that is abnormally large and powerful

noun: a very large person; impressive in size or qualities

adjective: of great mass; huge and bulky