say it: jahy-GAN-tik
gigantic is an adjective meaning "so exceedingly large or extensive as to suggest a giant or mammoth". It is pronounced /dʒaɪˈɡæntɪk/ — jahy-GAN-tik. It carries one recorded sense.
Definitions, synonyms and semantic relations for gigantic come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.