Material substance refers to a physical matter that has a tangible existence and can be observed through the human senses. It is a term that can be used interchangeably with other synonyms such as matter, stuff, or physicality. Other terms that can be used to describe material substance include substance, entity, object, mass, body, and materiality. These terms all refer to the physical presence or tangible features of an object, rather than its abstract or intangible qualities. They are often used in scientific contexts to describe physical properties such as density, mass, or volume. The term material substance is also used in philosophical and spiritual contexts to refer to the physical manifestation of spiritual or cosmic forces.