A person, place or thing in a sentence (4)

I believe the answer is:

noun

(Other definitions for noun that I've seen before include "Word used as a name for something or person" , "Person, place, thing, state or quality?" , "Identifying word (common or proper)" , "Naming word (grammar)" , "Word referring to person, place or thing" .)

I've seen this clue in The Irish Times.

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