Morphology is the branch of linguistics that studies the structure and formation of words. It examines how words are built from smaller units called morphemes, which are the smallest meaningful components of language. For example, in the word “unhappiness,” there are three morphemes: “un-” (a prefix meaning not), “happy” (the root word), and “-ness” (a suffix indicating a state or condition). In addition to linguistics, morphology is also a term used in biology to describe the form and structure of organisms. This includes the study of shapes, sizes, and arrangements of different parts of living beings, such as plants and animals. Understanding morphology helps scientists classify species and understand their functions and adaptations in their environments.