pill: noun
white: adjective
"White" is not a verb. It is a noun (referring to a color) and an adjective (describing something as white).
Coated is a verb, the past tense of coat. It can also be used as an adjective (a coated pill).
The word white as a color is an adjective. It refers to a noun, not a verb. It can also be a noun meaning the color white, or the white part of an egg or of an eye
Favor is a noun and a verb. Noun: Would you mind doing a favor for me? Verb: He favors red wine over white wine.
White is usually an adjective for it frequently describes a noun. In the sentance "That is a white t-shirt, "white" modifies and describes the noun "t-shirt." White can be a noun in cases like, "This recipe requires an egg white." In this instance, the word "egg," usually a noun is used in fact as an adjective, used to modify the noun "white." Use of white as a verb would be "It you find a typo, just white it out."
The noun form of the verb "noun" is "noun-ness" or "nominalization."
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.
No, it is a verb or a noun (to go around, to surround; a round shape). The adjective form is circular.
noun
A roar is a noun. To roar is a verb.
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.