Which word is NOT considered a part of speech?

A phrase is a group of words that work together but does not function as a single part of speech. In contrast, a noun, adverb, and conjunction are all distinct parts of speech within the English language.

Nouns represent people, places, things, or ideas. Adverbs modify verbs, adjectives, or other adverbs, often indicating manner, degree, frequency, or time. Conjunctions serve to connect words, phrases, or clauses within sentences, establishing relationships between different elements.

Phrases, while important in constructing sentences, do not fit into the categorical framework of parts of speech, which is why they are the correct choice for this question. Understanding the distinction between parts of speech and phrases is crucial for analyzing sentence structure and improving writing skills.