To please; give pleasure to; delight; satisfy; indulge.To requite or reward voluntarily; also, to give a gratuity to.Synonyms Gratify, Indulge, Humor. To gratify is a more positive act than to indulge or to humor. Gratify is most often used in a good sense; indulge, most often in a bad one. Humor expresses an easy or good-natured compliance or management, ordinarily neither weak nor evil: as, to humor a person's eccentricities.