This document discusses the eight traditional parts of speech in English grammar: noun, pronoun, adjective, verb, adverb, preposition, conjunction, and interjection. It provides examples for each part of speech and notes that some modern grammars include determiners as a separate part of speech. The document concludes by explaining that the part of speech of a word depends on how it is used in a sentence, as a single word can sometimes function as different parts of speech.