How do words differ from morphemes?

Words are the smallest units of language that convey meaning and can stand alone, while morphemes are the smallest meaningful units of language that may or may not stand alone. A Word can consist of one or more morphemes; for example, "cats" contains two morphemes: "cat" (the root) and "s" (indicating plural). In contrast, a single morpheme like "book" is itself a Word. Thus, all Words are made up of one or more morphemes, but not all morphemes can function as standalone Words.