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substance

SUB-stuns /ˈsʌbstəns/

nounB2GRESAT

generalacademic

In metaphysics, that which exists in itself and underlies all physical or mental properties.

In daily speech it means physical material or weight; in philosophy it refers to fundamental independent reality.

The story behind the word. From Latin 'substantia', literally meaning 'that which stands under'. It translated Greek 'hypostasis'. It referred to the underlying substrate that supports external qualities and attributes.

Word relationships

substrate: 'Substrate' emphasizes the underlying layer supporting something else, while 'substance' is the independent thing itself.

attribute: An 'attribute' is a property belonging to a substance, whereas substance exists independently.

Commonly confused with

matter: 'Matter' refers specifically to physical stuff, whereas philosophical 'substance' can be non-physical (e.g., mind or soul).

Word family

substantial (adjective): Of considerable size, value, or firm reality.
substantiate (verb): To provide evidence to support or prove the truth of something.

Collocations

underlying substance
material substance
lacks substance
substance dualism

Idioms & expressions

a person of substance (someone of wealth or influence)

Example sentences

"Spinoza asserted that there is only one infinite substance in the universe, which he called God or Nature." Metaphysical philosophy
"The critic noted that the speech was filled with empty rhetoric but lacked real substance." Debate and discourse

Memory hook

SUB (under) STANCE (stand): The reality that STANDS UNDER external appearances. Standing underneath all surface properties.

When not to use

In everyday speech 'substance' means liquid or chemical; in philosophy preserve its meaning as underlying reality.

Fun facts

The Christian doctrine of 'transubstantiation' uses this exact philosophical term to describe bread and wine changing their underlying essence.