Definition of
X
- (noun, quantity) the cardinal number that is the sum of nine and one; the base of the decimal system
- (noun, communication) the 24th letter of the Roman alphabet
- (noun, artifact) street names for methylenedioxymethamphetamine
- (adj, all) being one more than nine
via WordNet, Princeton University
Alternate forms of X
Hypernyms: alphabetic character, large integer, letter, letter of the alphabet, mdma, methylenedioxymethamphetamine
Origin of the word X
- most Eng. words beginning in -x- are of Gk. origin or modern commercial coinages. E. Anglian in 14c. showed a tendency to use -x- for initial sh-, sch- (cf. xal for shall), which didn't catch on but seems an improvement over the current system. As a symbol of a kiss on a letter, etc., it is recorded from 1765. In malt liquor, XX denoted… more
via Online Etymology Dictionary, ©2001 Douglas Harper