noun
a noun is a word that refers to a person, place, thing, event, substance, or quality
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The study of accretion discs around black holes is a fascinating field of astrophysics.
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Have you seen those cool pictures of accretion discs around stars? They look awesome!
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Dude, the accretion discs in space are like the ultimate cosmic frisbees.
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Her mind was like a swirling accretion disc, constantly absorbing new information and ideas.