Which of the following words is a noun?

Site (noun) -
an area of ground on which a town, building, or monument is constructed.
Let's look at the meanings of the other given options:
Cite (verb) - quote (a passage, book, or author) as evidence for or justification of an argument or statement, especially in a scholarly work
Sighed (verb) - emit a long, deep, audible breath expressing sadness, relief, tiredness, or a similar feeling
Chide (verb) - scold or rebuke