A West Arabic numeral, ultimately from Indic numerals (compare Devanagari ३), from a cursive form of three lines to represent the number three. See 3 § Evolution of the Arabic digit for more.
(phonetics, often superscript) the pitch of a tone, perhaps most commonly mid-pitch, but it may instead be high or low depending on local convention (e.g. the highest or lowest pitch if only the numbers 1–3 are used)
(phonetics, Sinosphere, often superscript) tone number 3, typically identified with dark rising yinshang (陰上). May be identified with departing qu tone (去) if the yin–yang distinction is not made.