A1 [ T ]
to make it possible for something to be seen :
[ + two objects ] Let me show you this new book I've just bought .
On this map , urban areas are shown in grey .
You ought to show that rash to your doctor .
[ + obj + question word ] Why won't you show me wh at's in your hand ?
These photographs show the effects of the chemical on the trees .
"This is a Victorian gold coin ." "Is it? Show me (= allow me to see it) ."
Thesaurus: synonyms, antonyms, and examples
  • appear One or two clouds appeared in the sky.
  • be/become visible As the beach gets darker, the glow of city lights becomes more visible.
  • show itself He believes the impact is showing itself clearly already.
  • emerge A slender figure is seen emerging from the darkness.
  • loom Clouds of volcanic ash loomed menacingly overhead.
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B2 [ T ]
to prove something or make the truth or existence of something known :
She has shown her self (to be) a highly competent manager .
His diaries show him to have been an extremely insecure person .
[ + (that) ] The diaries show (that) he was very insecure .
Show me (that) I can trust you.
[ + question word ] Our research has shown (us) how little we know about this disease .
More examples Fewer examples More examples Fewer examples
C1 [ I ]
to be easy to see or notice :
"Oh no, I've spilled red wine on my jacket !" "Don't worry , it doesn't show."
Whatever she's thinking , she never lets it show.
I've painted over the graffiti twice , but it still shows through .
The drug does not show up in blood tests because it is effective in very small quantities .
When we moved in, the house hadn't been decorated for 20 years , and it showed.
See also
show up informal
[ T ]
to fail to hide something, or to make it possible to see or know something that is not intended to be seen or known :
Your shirt's so thin that it shows your bra .
Light-coloured carpets show the dirt .
[ + question word ] His failure in the exams shows (up) just how bad his teachers are.
a quiz / game show
Why don't we go to London on Saturday and see a show?
We had to raise £60,000 to stage the show.
We had a puppet show for Jamie's birthday party .
See also
More examples Fewer examples
B2 [ C ]
an event at which a group of related things are available for the public to look at:
There were some amazing new cars at the motor show.
They put on a retrospective show of his work at the National Museum of American Art.
on show
More examples Fewer examples
a good, poor, etc. show
(Definition of show from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

show noun ( PUBLIC EVENT )
a flower show
a fashion show

show noun ( ACTIVITY )
Who will run the show when the boss retires ?

show noun ( APPEARANCE )
[ C/U ]
an appearance of something that is not really sincere or real :
[ C ] Ray made a show of reaching for his wallet .
[ U ] Does this fireplace work or is it just for show?
[ U ] Half for show and half in real anger , I stood up and shouted , “I'm not your friend !”

(Definition of show from the Cambridge Academic Content Dictionary © Cambridge University Press)