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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

process, physical process go
a sustained phenomenon or one marked by gradual changes through a series of states

phenomenon go
any state or process known through the senses rather than by intuition or reasoning

natural phenomenon go
all phenomena that are not artificial

geological phenomenon go
a natural phenomenon involving the structure or composition of the earth

catastrophe, cataclysm
a sudden violent change in the earth's surface

noun.phenomenon

1 Subcategories

nuclear winter go
a long period of darkness and extreme cold that scientists predict would follow a full-scale nuclear war