4

Glyph origin
A West Arabic numeral, ultimately from Indic numerals (compare Devanagari ), a cursive form of four lines (to represent the number four) arranged in the shape of a cross (resembling +). See for more.

Symbol

 * 1) The cardinal number four.
 * 2) A digit in the decimal system of numbering, and also in octal, and hexadecimal.
 * 3)  The pitch of a tone, either high or low depending on local convention (though not as high or low as 5, if '5' is also used).
 * , depending on other values
 * 1)  The tone number 4, typically identified with light rising yang shang (陽上). May be identified with entering ru tone (入) if the yin–yang distinction is not made.

Alternative forms
The following are equivalent forms as digits:

The following are only equivalent as representations of the cardinal number:

Pronunciation

 * As.

Preposition

 * 1)  An abbreviation of.

Related terms

 * M4F, M4M, T4T and others in that vein

Translations

 * Italian:
 * Malay: utk

Usage notes
This is usually used to indicate that an affix or clitic varies between using the unrounded back vowel, the rounded back vowel , the rounded front vowel and the unrounded front vowel.