Better is an adjective. It is the comparative form of the adjective; good, better, best. Example sentence:
I'm going out to buy a better car.
It can be either. It can also be a verb or a noun. As an adjective, it's the comparative form of the adjective, 'good.' "This hat is better than mine." As an adverb, it's the comparative of 'well.' "I behave better than you." As a verb, it means 'to improve.' "We bettered last year's record." As a noun, it usually means 'wiser.' "It was the better of the two choices."
Yes, the noun improvement is an abstract noun, a word a change for the better; progress in development; a word for a concept.
No. Ameliorate is a verb. It means to make better, to improve a condition.
The word 'noun' is not a verb. The word 'noun' is a noun, a word for a thing.
No, it is a verb or a noun (to go around, to surround; a round shape). The adjective form is circular.
The noun 'is' is a verb, a form of the verb 'to be'. The verb 'is' functions as an auxiliary verb and a linking verb.
noun
A roar is a noun. To roar is a verb.
In the sentence "I hope you are feeling better," the noun is "you," as it refers to the person being addressed. The verb is "hope," indicating the speaker's desire or wish regarding the subject's state of feeling. The phrase "are feeling" also contains a verb, where "are" serves as a linking verb and "feeling" is the main action.
Training is a noun and a verb. Noun: e.g. activity of acquiring skills. Verb: present participle of the verb 'train'.
Has is a verb; it is not a noun. It is the third person singular of the verb to have. It functions as a helping verb as well, but it is not a noun.
It is neither a noun or a verb.