unknown Meaning in the Cambridge English Dictionary Cambridge dictionaries logo

Meaning of “unknown” in the English Dictionary

"unknown" in British English

See all translations

unknownadjective

uk   /ʌnˈnəʊn/  us   /-ˈnoʊn/
B1 not ​known or ​familiar: The ​exactnumber of ​peoplecarrying the ​virus is unknown. As ​recently as six ​months ago her ​name was ​almost unknown in this ​country. Unknown to me, she'd ​organized a ​party for my ​birthday.

expend iconexpend iconMore examples

unknownnoun

uk   /ʌnˈnəʊn/  us   /-ˈnoʊn/
C1 [S] what is not ​familiar or ​known: Racism is in some ​ways just a ​fear of the unknown. [C] a ​person, ​especially a ​performer or ​sportsplayer, who is not ​famous: For her ​latestfilm she ​deliberatelychose a ​cast of unknowns. [C] mainly US something that cannot be ​guessed at or ​calculated because so little is ​known about it: It's the ​big unknowns that make ​insurancecompaniesuneasy.
(Definition of unknown from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"unknown" in American English

See all translations

unknownadjective

 us   /ʌnˈnoʊn/
not ​known, or not ​known to many ​people: His ​whereabouts are still unknown.

unknownnoun [C]

 us   /ʌnˈnoʊn/
a ​person who is not ​known to many ​people: A ​year ago she was a ​virtual unknown on the figure-skating ​scene.
(Definition of unknown from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of unknown?
Add Cambridge dictionaries to your browser to your website

“unknown” in British English

“unknown” in American English

Word of the Day

carnival

(a special occasion or period of) public enjoyment and entertainment involving wearing unusual clothes, dancing, and eating and drinking, usually held in the streets of a city

Word of the Day

Chest pains and palpitations: talking about illness (2)
Chest pains and palpitations: talking about illness (2)
by Liz Walter,
February 03, 2016
My previous post (My leg hurts: Talking about illness (1)) presented some general vocabulary to use at the doctor’s. This one looks at some more specific areas of illness and explains some useful words and phrases that you may need to use or understand on a visit to the doctor’s. There are several

Read More 

farecasting noun
farecasting noun
February 08, 2016
predicting the optimum date to buy a plane ticket, especially on a website or using an app A handful of new and updated websites and apps are trying to perfect the art of what’s known as farecasting – predicting the best date to buy a ticket.

Read More