Question

If I say a countable noun is a noun that can easily be given a numeric value is it grammatically correct by English standard

Answer 1

Yes, your definition of a countable noun is generally correct. A countable noun refers to a noun that can be counted, meaning it can be quantified with numbers. These nouns can be singular or plural and can be preceded by numbers or words like "many" or "few." Examples include "apple" (one apple, two apples) and "book" (one book, several books). Your description captures the essence of what makes a noun countable in English grammar.