To bathe, especially in warm water (and hence in blood, etc.).To lie in or be exposed to a pleasant warmth; luxuriate in the genial heat or rays of anything: as, to bask in the sunshine.Figuratively, to be at ease and thriving under benign or gratifying influences: as, to bask in the favor of a king or of one's lady-love.To expose to genial warmth; suffuse with agreeable heat.n. Emitted warmth; a genial radiation or suffusion.Bitter.Same as bash.