eye-opener game changer

eye-opener
noun [ C usually singular ]
uk  /;a;;;;.p;n.;r/ us  /;a;;o;.p;n.;/
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something that surprises you and teaches you new facts about life, people, etc.:
Living in another country can be a real eye-opener.
 Thesaurus: synonyms, antonyms, and examples
a surprise
surpriseThe announcement that she was leaving the post was a surprise to us all.
shockIt will be a terrible shock if their income is cut.
kickerUS The kicker is that even after six rounds of interviews, she still wasn't a finalist for the job.
a rude awakeningShe'll be in for a rude awakening when she has to pay her own bills.
eye-openerHis unauthorized biography was a real eye-opener.
news to meSarah is leaving? Well that's news to me.
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 SMART Vocabulary: related words and phrases
(Definition of eye-opener from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
eye-opener | American Dictionary
eye-opener
noun [ C ]
us  /;;;;o;·p;·n;r/
Add to word list
infml something that is surprising and that teaches you something new
(Definition of eye-opener from the Cambridge Academic Content Dictionary © Cambridge University Press)
Examples of eye-opener
eye-opener
For those who maintain an illusion of tight control, the book will be an eye-opener.
From the Cambridge English Corpus
It was an eye-opener; everything we were doing was first off.
From the Cambridge English Corpus
That was quite an eye-opener.
From the Cambridge English Corpus
For me, the visit was a real eye-opener.
From Europarl Parallel Corpus - English
I believe that it will be an eye-opener.
From the Hansard archive
Indeed, it would be a real eye-opener to the average member of a congregation, and it is very important that we learn its lessons.
From the Hansard archive
No doubt for many people it will be an eye-opener to see how expensive even the small repairs can be.
From the Hansard archive
It can be quite an eye-opener to see what, for example, acupuncture, chiropractic, homeopathy or osteopathy can do where orthodox methods have failed.
From the Hansard archive
Their report, one year on, upon their 1993 national conference is an absolute eye-opener.
From the Hansard archive
It was an eye-opener for me in many ways.
From the Hansard archive
It may provide them with an eye-opener in terms of good practice in the provision of child care nurseries.
From the Hansard archive
That was quite an eye-opener, which would not be noticed except by someone confronted with it.
From the Hansard archive
I must say that yesterday's visit was a most splendid eye-opener as regards improvement.
From the Hansard archive
On the question of prices, whatever view we may take, there has been a great eye-opener as to what would happen if we had war.
From the Hansard archive
It was a tremendous eye-opener for me, to learn what was in the minds of those children.
From the Hansard archive
See all examples of eye-opener
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
What is the pronunciation of eye-opener?
 

in German
etwas, das einem die Augen ;ffnet…

 
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eye someone up phrasal verb
eye tracking
eye-catching
eye-catchingly
eye-opener
eye-opening
eye-openingly
eye-roll
eye-rolling