5

Glyph origin
A West Arabic numeral, ultimately from Indic numerals (compare Devanagari ). See for more.

Symbol

 * 1) The cardinal number five.
 * 2) A digit in the decimal system of numbering, as well as octal, and hexadecimal.
 * 3)  the pitch of a tone, either high or low depending on local convention; '5' is most commonly the highest or lowest pitch (but see 6)
 * 4)  tone number 5, typically identified with dark departing yin qu (陰去)
 * 1)  tone number 5, typically identified with dark departing yin qu (陰去)

Alternative forms
The following are equivalent forms as digits:

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

Noun

 * 1)   540&deg; spin

Etymology
and are near homophones.