verb (used with object), gild·ed or gilt, gild·ing. 1.to coat with gold, gold leaf, or a gold-colored substance.
2.to give a bright, pleasing, or specious aspect to.
3.Archaic. to make red, as with blood.
Idioms 4.gild the lily, to add unnecessary ornamentation, a special feature, etc., in an attempt to improve something that is already complete, satisfactory, or ideal: After that wonderful meal, serving a fancy dessert would be gilding the lily.