The centre of any activity.
A solution that people will tend to use in the absence of communication, because it seems natural, special, or relevant.
A focus; a point at which rays of light or other radiation converge.
A feature that attracts particular attention.
The essential part of anything; the most vital part.
Physical matter; material.
Material possessions; estate; property; resources.
Hypostasis.
Drugs (illegal narcotics)
Substantiality; solidity; firmness.
A form of matter that has constant chemical composition and characteristic properties.
To give substance to; to make real or substantial.