The document discusses morphology and defines key terms related to morphological analysis. It can be summarized as follows:
1) Morphology is the study of the structure of words and the smallest units of meaning called morphemes.
2) There are two types of morphemes - free morphemes that can stand alone as words, and bound morphemes that need to be attached to other morphemes.
3) Affixes like prefixes and suffixes are examples of bound morphemes that can be added before or after root words to change the meaning.