which is which Meaning in the Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of “which is which” in the English Dictionary

"which is which" in British English

See all translations

which is which

used in ​expressions that ​relate to being ​able to ​see the ​difference between two very ​similar things or ​people: For the first few ​months the ​babieslooked so ​alike I couldn't tell which was which.
(Definition of which is which from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"which is which" in American English

See all translations

which is which

each ​person or thing ​separately: The ​twinslook so much ​alike I’m ​surprised anyone can ​tell which is which.
(Definition of which is which from the Cambridge Academic Content Dictionary © Cambridge University Press)
Translations of “which is which”
in Chinese (Simplified) 哪个是哪个(用于区分两个相似的人或物时)…
in Chinese (Traditional) 哪個是哪個(用於區分兩個相似的人或物時)…
Add Cambridge dictionaries to your browser to your website
Word of the Day
public school

in England, an expensive type of private school (= school paid for by parents not by the government)

Word of the Day

Introducing a new author and a new weekly blog post!
Introducing a new author and a new weekly blog post!
by ,
August 27, 2015
The English language is constantly changing. You know that. But did you know that at Cambridge Dictionaries Online we keep track of the changes? We continually add new words and new meanings to our online dictionary for learners of English. Some of them are new to English entirely (neologisms), and some are new to our

Read More 

hyperpalatable adjective
hyperpalatable adjective
August 24, 2015
describes food with heightened levels of sugar and salt, intended to be extremely appealing In Brazil, where the prevalence of overweight and obese adults has doubled since 1980, crisps, biscuits, energy bars and sugary drinks formulated to be ‘hyper-palatable’ are much more widely eaten than previously.

Read More