substance
substance. 1. The essence of something; the essential quality of something, as opposed to its mere form (matter of substance). 2. Any matter, esp. an addictive drug (illegal substance) (abuse of a substance).
substance. 1. The essence of something; the essential quality of something, as opposed to its mere form (matter of substance). 2. Any matter, esp. an addictive drug (illegal substance) (abuse of a substance).