Chapter 5 describes word formation in Korean. We focus on three major aspects of Korean morphology: (1) morphological types and properties, (2) affixation, and (3) compounding. We introduce the approach of Korean grammarians in classifying major parts of speech. They distinguish Category 1 (Nominals: nouns, pronouns and numerals), Category 2 (Predicatives: verbs and adjectives, which can function in Korean as predicates on their own), and Category 3 (Modifiers: determiners, adnominals, adverbials, and particles). We go on to examine bound morphemes, including the bound stems in Category 2, particles in Category 3, and dependent nouns. We also discuss affixation and compounding processes, distinguishing derivational and inflectional affixation and surveying co-compounding/sub-compounding.