condiment

noun

1. a preparation (a sauce or relish or spice) to enhance flavor or enjoyment

   noun.food

   Examples

   Mustard and ketchup are condiments.

   Source: WordNet 3.0

2. Something used to give relish to food, and to gratify the taste; a pungment and appetizing substance, as pepper or mustard; seasoning.

   noun

   Source: webster1913