substance
sub-stance
noun
A particular kind of matter with specific properties, often solid, liquid, or gas.
"Water is a common liquid substance."
noun
The most important or essential part of something; practical importance or value.
"His argument lacked real substance."
Thesaurus
Synonyms: means, subject matter, message, content, meaning, marrow, meat, heart, center, heart and soul, inwardness, nitty-gritty