Yes the word territories is a plural noun.
The singular noun is territory.
you
Valleys is the plural form of valley.
The noun 'neighbour' is the singular form.The plural form is neighbours.
The plural possessive noun for "map" is "maps'."
The plural form is areas.
Yes, the word territories is a noun. It is the plural of "territory" (unincorporated region, or state-like provincial governmental unit).
The plural noun is halves.
The plural noun of general is generals. Generals is a regular plural noun.
The plural noun for path is paths. The plural noun for patch is patches.
No, Mice is a plural noun. Mouse is the singular noun.
It is a plural noun.
No, it is a possessive noun. Mothers is a plural noun.
The plural form for the noun lady is ladies.
The plural form of the noun newspaper newspapers.
The noun 'teeth' is the plural noun. The singular noun is 'tooth'.
Yes, the word plural is a noun.
Opposites is the plural noun.