It is a noun which can be used as an adjective: a cotton shirt.
No. It can be a noun or adjective, and colloquially a verb with two separate uses (cotton=approve,accept and cotton to=become aware of).
Dark can be an adjective or a noun. Darkly is an adverb.
Adverb.Here is an adverb, not an adjective.
its an adverb an adjective is a descriptive word an adverb is a feeling
An adverb describes a verb, an adjective or another adverb.
It can be an adjective OR an adverb. adjective -- You dog is a friendly dog adverb -- She always talks friendly to me
Nervous is an adjective. The adverb form is nervously.
Yes, "especially" can function as both an adverb and an adjective. As an adverb, it modifies a verb, an adjective, another adverb, or a sentence. As an adjective, it describes a noun.
Comprehensible is an adjective. The adverb is comprehensibly.
'The' is neither an adjective nor an adverb. It is an article.
Deliberate is an adjective, the adverb is deliberately.
No, it is not. It is an adverb, the adverb form of the adjective unsteady.