This is the 5140th most frequent Portuguese word.
nu
"Naked" or "bare".
The word 'nu' here is used as an adjective meaning 'naked', describing the state of the subject.
Ele estava nu na praia.
He was naked on the beach.
The word 'nu' is used here as a noun in its own right, referring to the concept of 'nakedness'.
Nu é uma palavra que descreve algo sem roupas.
'Nu' is a word that describes something without clothes.
In this case, 'nu' is used as a noun meaning 'nude', often in an artistic context.