• a particular kind of matter with uniform properties

Synonyms: material, matter, stuff, medium, fabric

• the real physical matter of which a person or thing consists and which has a tangible, solid presence

Synonyms: solidity, body, corporeality, reality, actuality, materiality, concreteness, tangibility

• the quality of being important, valid, or significant

• the essential nature underlying phenomena, which is subject to changes and accidents