The word 'each' is not a noun. The word each is:
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A proper noun is a noun that refers to one specific object; because neighbours refers to a group, it is a common, or improper noun.
Common noun
common
Pea is a common noun, and peas is the plural...still a common noun.
A common noun.
Most definitely a common noun.
Camel is a common noun.
Th word tail is a common noun because the first letter of a proper noun is capitalized.
The noun 'continents' (the plural form of 'continent') is a common noun, a general word for a large mass of land.The noun 'continents' is a concrete noun, a word for a physical thing.
it is re@lly @ common noun