What type of noun is a?

Answer 1

The word 'a' is not a noun, the word 'a' is an indefinite article, also called a noun determiner. The article 'a' is placed before a noun starting with a consonant sound (a boy, a banana) to indicate the noun is a general noun (any boy, any banana).

The corresponding indefinite article that is placed before a noun starting with a vowel sound is 'an' (an aunt, an apple).

The definite article 'the' is used to indicated a noun for a specific person or thing (the boy, the apple).

A noun is a word for a person, a place, or a thing (boy, banana, aunt, apple).