This document discusses word parts and their meanings. It explains that words are made up of prefixes, root words, and suffixes, and that understanding these parts can help deduce a word's meaning. Root words are the basic part of a word and have meaning on their own. Prefixes are added before root words and can change a word's meaning. Suffixes are added after root words and can change a word's grammatical function. Examples of prefixes, suffixes, and root words are provided to illustrate how meanings can be determined from word parts.