In Semiotic literary criticism, a syntagm (or syntagma) is a building block of a text into which meaning is encoded by the writer and decoded by the reader, recalling past experience and placing the message in its appropriate cultural context. Individual syntagms can be arranged together to form more complex syntagms: groups of sounds (and the letters to represent them) form words, groups of words form sentences, sentences form narratives, and so on. A list of syntagms of the same type is called a paradigm.