Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “x”

See all translations

x

noun uk   /eks/ us  

x noun (AMOUNT)

[U] used to represent a number, or the name of person or thing that is not known or stated: If 2x = 8, then x = 4. Witness x stated that she had seen Cooper on repeated occasions.

x noun (KISS)

[C] ( plural x's) used at the end of an informal piece of writing to represent a kiss: Write soon, all my love, Katy xxx

x noun (MISTAKE)

[C] ( plural x's) written on an answer to a question to show that the answer is not correct

x

verb [T] uk   /eks/ ( present tense x's, present participle x'ing, past tense and past participle x'ed) US us  
to remove something from a list: I x'ed out all the names of the people I wouldn't be sending cards to.
(Definition of x from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of x?
Add Cambridge dictionaries to your browser to your website

Definitions of “x” in other dictionaries

SMART Thesaurus: Mathematical symbols

“x”: synonyms and related words:

You can also find related words, phrases, and synonyms in the topics:

Word of the Day

pup

a baby of particular animals, or a puppy

Word of the Day

I won’t tolerate it! Replacing formal words with phrasal verbs.

by Liz Walter,
April 01, 2015
When you are using a language, it is important to understand if a word is formal or informal, so that you can use it in an appropriate way. You might hear people saying dosh for money, or spud for potato, but they wouldn’t write those words in a formal essay. Similarly, a

Read More 

stackin’ p

March 30, 2015
idiom slang earning a lot of money ‘That’s a very generous present.”Yeah, well, she’s stackin’ p, innit?’

Read More