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This document discusses word stress and derivational suffixes that can affect stress placement. It defines word stress as a suprasegmental feature of language that occurs simultaneously with segments. There are three levels of stress: unstressed, primary stress, and secondary stress. Derivational suffixes are defined as a group of letters added to the end of a word to form a new word. Derivational suffixes are classified into three types: stress-preserving suffixes which do not affect stress placement, stress-attracting suffixes which shift stress to the suffix, and stress-shifting suffixes which shift stress within the word but not to the suffix. Examples of each type are provided.Read less