gratification

from The Century Dictionary.

• noun The act of gratifying or pleasing; a pleasing or satisfying.
• noun The state of being gratified; pleasure received; delectation; satisfaction.
• noun Voluntary reward or recompense; also, a gratuity for services received or expected.
• noun Any reward in money given to soldiers for good conduct in a battle or campaign; an allowance made to prisoners of war; a voluntary contribution made by soldiers to the widows of comrades.

from the GNU version of the Collaborative International Dictionary of English.

• noun The act of gratifying, or pleasing, either the mind, the taste, or the appetite.
• noun That which affords pleasure; satisfaction; enjoyment; fruition: delight.
• noun A reward; a recompense; a gratuity.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The act of gratifying, or pleasing, either the mind, the taste, or the appetite; as, the gratification of the palate, of the appetites, of the senses, of the desires, of the heart.
• noun That which affords pleasure; satisfaction; enjoyment; fruition: delight.
• noun A reward; a recompense; a gratuity.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun state of being gratified or satisfied
• noun the act or an instance of satisfying