The definition of gigantic is extremely large or huge.(adjective)
An example of something gigantic is an elephant in comparison to a mouse.
See gigantic in Webster's New World College Dictionary
Origin: < L gigas (gen. gigantis): see giant + -ic
See gigantic in American Heritage Dictionary 4
Origin: From Latin gigās, gigant-, giant; see giant
Origin: , or from Greek gigantikos (from gigās, gigant-, giant).
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