The inherent nature of a thing or idea.
Constituent substance.
The concentrated form of a plant or drug obtained through a distillation process.
A being; especially, a purely spiritual being.
An extract or concentrate obtained from a plant or other matter used for flavouring, or as a restorative.
The true nature of anything, not accidental or illusory.
A significant feature of something.
Fragrance, a perfume.
The plot of a story.
A narrative description of a given modeling scenario, highlighting its main characteristics and underlying technical and socioeconomic drivers.