x definition, meaning - what is x in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

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x

noun uk   us   /eks/

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   us   /eks/ (present tense x's, present participle x'ing, past tense and past participle x'ed) 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)
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