town vs city limits

town and city limits both are nouns.

Word	Noun	Adjective	Verb	Adverb
town	Yes	No	No	No
city limits	Yes	No	No	No

town (noun)	city limits (noun)
the people living in a municipality smaller than a city	the limits of the area occupied by a city or town
an urban area with a fixed boundary that is smaller than a city
an administrative division of a county