n.1 a traditional narrative usu. involving supernatural or imaginary persons and embodying popular ideas on natural or social phenomena etc.
2 such narratives collectively.
3 a widely held but false notion.
4 a fictitious person, thing, or idea.
5 an allegory (the Platonic myth).
Derivatives:
mythic adj. mythical adj. mythically adv.
Etymology: mod.L mythus f. LL mythos f. Gk muthos