Eight (8) is the natural number following seven and preceding nine.
In binary code eight is 1000; in ternary code eight is 22; in quaternary numeral system code eight is 20; in quinary eight is 13; in senary eight is 12; in septenary eight is 11; in octal eight is 10; in novenary code and all codes above (such as decimal and hexadecimal) eight is 8. In Roman numerals eight is VIII.
There are eight musicians in an octet.
Eight babies delivered in one birth are called octuplets. The first set of eight surviving babies, the Louis-Chukwu Octuplets, were born in 1998. On The Simpsons, Apu and his wife Manjula have a set of octuplets.
Timothy Leary identified a hierarchy of eight levels of consciousness.
Eight cannot be said by a wizard on the Discworld and is also the number of Bel-Shamharoth.
Referring to the shape of the numeral, eight was represented in bingo slang, before political correctness, as 'One Fat Lady.' Eighty-eight was 'Two Fat Ladies'.
"Eight maids a-milking" is the gift on the eighth day of Christmas in the "Twelve days of Christmas" carol.
There are eight categories of political ideology on a Vosem Chart, which gets its name from восемь, the Russian word for eight, or on a Friesian Cube (see political spectrum). Eight is also the number of categories the VALS system uses to classify consumer groups, and the number of categories used by Fallon-McElligott's system for teen marketing.
There is a brand of chocolate called "After Eight", referring to the time 8 p.m. There are eight vegetables in V8 juice.
The number on Walt Disney's Herbie adds up to eight.
A note played for one-eighth the duration of a whole note is called an eight note, or quaver.
The numeral "8" is sometimes used in writing to represent the syllable "ate", as in writing "H8" for "hate", or "congratul8ons" for "congratulations". Avril Lavigne's song "Sk8er Boi" uses this convention in the title.
Other uses include:
- Several groups of "Eight Immortals"
- Eight Principles of Yong
- War of the Eight Princes
- Eight queens puzzle
See also: six, seven, eight, nine, ten, integer, list of numbers.
This article is about the number. For the year AD 8, see 8.