1.Definition: a particular kind or species of matter with uniform properties

"Shigella is one of the most toxic substances known to man"

Category: General

2.Definition: considerable capital (wealth or income)

Related Noun(s):means

Category: General

3.Definition: material of a particular kind or constitution

"The immune response recognizes invading substances"

Category: General

4.Definition: the choicest or most essential or most vital part of some idea or experience

Related Noun(s):center, centre, core, essence, gist, heart, inwardness, kernel, marrow, meat, nub, pith, sum

Category: General

5.Definition: the idea that is intended

Category: General

6.Definition: the property of holding together and retaining its shape

Related Noun(s):body, consistence, consistency

Category: General

7.Definition: the real physical matter of which a person or thing consists

"DNA is the substance of our genes"

Category: General

8.Definition: what a communication that is about something is about

Related Noun(s):content, message

Category: General