The word 'who' is not a noun. The word 'who' is a pronoun.
The pronoun 'who' is an interrogative pronoun and a relative pronoun.
An interrogative pronoun introduces a question. The antecedent to the pronoun 'who' is normally the answer to the question.
The pronoun 'who' is the subjective form.
A relative pronoun introduces a relative clause, a group of words with a subject and a verb but is not a complete thought, is not a complete sentence. A relative clause gives information about its antecedent.
Examples:
Who gave you this assignment? It was my history teacher. (interrogative pronoun)
Ask the teacher who assigned it your question. (relative pronoun)
Note: The objective form is 'whom' which normally functions as the object of a preposition.
Examples:
To whom should I give my completed application? (interrogative pronoun)
The one to whom you give your application is the manager. (relative pronoun)
No, it is a verb or a noun (to go around, to surround; a round shape). The adjective form is circular.
It is an adjective.It is a an adjective.
Cautious IS an adjective. An adjective is an action!
An adjective
it is an adjective!
No. It is not an adjective. An adjective describes something.
No, it is an adverb. The adjective is clumsy.
It can be. "Ideal" is an adjective and a noun.
No it's not a adjective, an adjective is a describing word.
adjective
No, it is not an adjective; it is an adverb. The adjective form is "awkward."
It is not an adjective. It is a noun based on the adjective unfit.