This chapter introduces basic concepts needed for the study and description of morphologically
complex words. Since this is a book about the particular branch of morphology called word-
formation, we will first take a look at the notion of ‘word’. We will then turn to a first analysis of
the kinds of phenomena that fall into the domain of word-formation, before we finally discuss
how word-formation can be distinguished from the other sub-branch of morphology, inflection.