Grammar

'Nominate' is an action word meaning to propose someone for a position or office. Verbs express actions, occurrences, or states of being. 'Nominate' fits this definition as it describes the action of proposing someone (e.g., 'They nominated him for president'). It cannot function as a noun, adjective, adverb, or preposition.

'Nook' is a noun that refers to a small corner or recess, especially in a room. Nouns name people, places, things, or ideas. 'Nook' fits this definition as it names a specific type of physical space. The word cannot function as a verb, adjective, adverb, or preposition in this form.

'Non' is a prefix or adverb meaning 'not' or 'the opposite of' (as in 'non-existent,' 'non-stop'). When used as a standalone word, it functions as an adverb indicating negation. Adverbs modify verbs, adjectives, or other adverbs. 'Non' is not a verb, noun, pronoun, or preposition - it's an adverbial particle indicating negation.

'None' is a pronoun meaning 'not any' or 'no part/portion.' Pronouns take the place of nouns. In sentences like 'None of the students came' or 'I have none left,' 'none' functions as a pronoun referring back to a previously mentioned noun or quantity. It is not a verb, conjunction, interjection, or preposition.

'Neighbour' is a noun that refers to a person living next door or near to another. Nouns name people, places, things, or ideas. 'Neighbour' perfectly fits this definition as it names a type of person based on their location relative to others. The word cannot function as a verb, adjective, adverb, or preposition.

'North' is a noun referring to one of the four cardinal directions. Nouns name people, places, things, or ideas. 'North' names a specific direction and is used as a noun in phrases like 'The north of France' or 'North is straight ahead.' While 'north' can function as an adjective in some contexts (north wind), its primary classification is as a noun.

To nod means to move one's head up and down, typically to show agreement or greeting. This is an action, which makes it a verb. For example, in the sentence 'She nodded in agreement,' nodded is the past tense of the verb nod.

A nose is a physical body part - the protruding part of the face that contains the nostrils. Body parts and people are persons, places, or things, which makes them nouns. You can put 'a' or 'the' before it: 'the nose' or 'a nose.'

Notorious is an adjective that means famous or well known for some bad quality or deed. Adjectives describe nouns. For example, 'a notorious criminal' means a criminal who is famous for bad reasons. The word describes the quality of being famous in a negative way.

A notary is a person authorized to perform certain legal formalities, especially to draw up or certify contracts. Since it refers to a person or their role, it is a noun. You can say 'a notary public' or 'the notary,' which shows it functions as a naming word.

A novice is a person new to a field or situation - a beginner. Since it refers to a person, it is a noun. You can say 'a novice' or 'the novice,' just as you would with any person's title or role. It names the person's level of experience or status.

Notable is an adjective meaning worthy of attention or notice; remarkable. Adjectives describe qualities of nouns. For example, in 'a notable achievement,' the word notable describes what kind of achievement it is - one worth noticing. It characterizes the noun it modifies.

To nourish means to provide with food or other substances necessary for growth and health. This is an action you do, which makes it a verb. For example, in 'Plants need water to nourish their roots,' nourish is the action of providing nutrients. It describes what someone or something does.

A nozzle is a part or device - specifically a short tube with a tapering end, attached to a hose or pipe. Physical objects and parts are things, which makes them nouns. You can say 'a nozzle' or 'the nozzle,' which confirms it functions as a naming word for an object.

Nowhere is classified here as an adjective describing a place with no positive identity or direction, as in 'a nowhere town' - a town that is insignificant or isolated. However, this is debatable; 'nowhere' is more commonly classified as an adverb indicating no place or position (e.g., 'He looked nowhere'). In this context, it may function adjectivally by modifying a noun, though this is not its primary grammatical role.