The term stress refers to the high pitch and loudness with which a syllable is pronounced relative to others in the same word or sequence of words. This chapter discusses the position of stress in isolated words. The syllable which is stressed in an isolated word is the same one which is stressed when that particular word is the most prominent one within a sequence of words. There are a number of suffixes and clitics in Turkish which do not take stress and are pre- stressing except in certain cases where two of them occur within the same intonational phrase. The addition of unstressable suffixes and clitics to a word may or may not change the existing position of stress within that word. The addition of the negative suffix changes the existing position of potential stress within a word, attracting it to the syllable before itself.