substance vs means

substance and means both are nouns.

Word	Noun	Adjective	Verb	Adverb
substance	Yes	No	No	No
means	Yes	No	No	No

As nouns, substance and means are synonyms defined as:

substance (noun)	means (noun)
the real physical matter of which a person or thing consists	to have the ability to produce a particular effect or achieve an end
a particular kind or species of matter with uniform properties	an artifact (that is instrumental in accomplishing some end) for accomplishing some end
the property of holding together and retaining its shape	considerable capital (wealth or income)
the idea that is intended
the choicest or most essential or most vital part of some idea or experience
content communicating a message; what something is about
considerable capital (wealth or income)
material of a particular kind or constitution