Cadence refers to the rhythmic flow of a sequence of sounds or words. In music, it indicates the progression of chords that leads to a resolution, creating a sense of closure. In poetry, cadence can describe the natural rise and fall of the voice when reading lines aloud, contributing to the overall mood and meaning. In the context of speech, cadence involves the timing and pace of spoken language, affecting how messages are conveyed and received. It plays a crucial role in effective communication, as variations in cadence can emphasize important points or create emotional impact, enhancing the listener's experience.