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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

matter go
that which has mass and occupies space

substance go
the real physical matter of which a person or thing consists

material, stuff go
the tangible substance that goes into the makeup of a physical object

chemical, chemical substance go
material produced by or used in a reaction involving changes in atoms or molecules

pesticide go
a chemical used to kill pests (as rodents or insects)

insecticide, insect powder go
a chemical used to kill insects

organophosphate
an insecticide that interferes with an insect's nervous system

noun.substance

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