Intonation, when used in a narrow sense, refers to fundamental frequency (henceforth F₀) patterns in speech that convey information beyond lexical meanings. In a broader sense, intonation also includes other suprasegmental patterns such as duration, intensity and voice quality, etc., that also convey non-lexical meanings. This article will focus mainly on the former, because, as will be seen, F₀ is the main carrier of non-lexic…