1.nounAn extended narrative poem in elevated or dignified language, celebrating the feats of a deity, demigod (heroic epic), other legend or traditional hero.
"The Icelandic epic took all night to recite."
2.nounA series of events considered appropriate to an epic.
"The book was an epic in four volumes."
3.nounIn software development, a large or extended user story.
4.adjectiveOf, or relating to, an epic.
"Beowulf is an epic poem."
5.adjectiveMomentously heroic; grand in scale or character
"The epic defense was rewarded with the highest military decorations"
6.adjectiveExtending beyond the usual or ordinary.