X

Meaning

Num

An unknown quantity or unknown value.

Name

1. A placeholder for an unknown, suppressed or hypothetical name.
2. A surname, used by those who have had their identity or heritage, including their proper ancestral names, erased or forgotten.

Character

The twenty-fourth letter of the English alphabet, called ex and written in the Latin script.

Noun

1. Any mark that looks like that letter, such as a mark made by a person who cannot read or write in lieu of a signature.
2. The spot behind the goal.

Adj

Intersex or non-binary (in passports and identification documents).

Noun

Ecstasy, a particular street drug.

Adj

1. Suitable only for those aged 16 or (later) 18 years and over.
2. Obscene.

Name

Christ

Noun

Cross, crossing.

Adj

Abbreviation of extreme.

Synonyms

XTC

ecstasy

ex

E

E

Adam

go

x

x

XI

cristal

disco biscuit

hug drug

a kiss

demerit mark

J

J

X Window

decade

Z

Z

cross mark

Resolution

I

10

XD

Q flag

MDMA

exchange

experimental

Execute

stuff

ten

tenner

Pronounced as (IPA)

/ɛks/

Etymology

Introduced by René Descartes in the context of mathematical notation, but has since widened to other contexts.