Definitions
1.NounThe inherent nature of a thing or idea.
2.NounThe true nature of anything, not accidental or illusory.
3.NounConstituent substance.
4.NounA being; especially, a purely spiritual being.
5.NounA significant feature of something."(Can we add an example for this sense?)"
6.NounThe concentrated form of a plant or drug obtained through an extraction or distillation process."essence of Jojoba"
7.NounAn extract or concentrate obtained from a plant or other matter used for flavouring, or as a restorative."vanilla essence"
8.NounFragrance, a perfume.