noun vs adjective vs pronoun vs verb

Sure, here's a basic comparison between nouns, adjectives, pronouns, and verbs:

Nouns: These are words that name people, places, things, or ideas. Examples include "computer", "city", "John", and "happiness".

Adjectives: These are words that describe or modify other words, typically nouns or pronouns. They give more information about a noun’s or pronoun's size, shape, age, color, origin, material, or character. Examples include "red", "old", "happy", and "tiny".

Pronouns: These are words that take the place of nouns in a sentence. Examples include "he", "she", "it", "they", "him", "her", "us", and "them". Pronouns are used to avoid repetition and to help give sentences variety and rhythm.

Verbs: These are action words. They express actions, events, or states of being. Examples include "run", "think", "is", and "become".
In a sentence, these four parts of speech might interact like this: The adjective 'happy' describes the noun 'dog'. 'He' is the pronoun that replaces 'dog', and 'runs' is the verb that tells what action the dog is doing.

Please note that words can function as different parts of speech depending on their usage in a sentence. For instance, 'run' can be a verb (as in "I run") or a noun (as in "I went for a run")