General synonyms:
* Joy
* Pleasure
* Happiness
* Rapture
* Elation
* Jubilation
* Enchantment
* Bliss
* Ecstasy
More specific synonyms:
* Thrill (for intense excitement)
* Gratification (for a sense of satisfaction)
* Amusement (for lighthearted enjoyment)
* Exhilaration (for a feeling of invigoration)
* Delectation (for refined enjoyment)
* Rhapsody (for a state of intense joy and enthusiasm)
The best synonym for "delight" will depend on the context of your sentence. For example, if you're describing the feeling of a child receiving a gift, "joy" or "happiness" might be appropriate. But if you're describing the feeling of listening to beautiful music, "enchantment" or "rapture" might be better choices.