Meaning of “conceal” in the English Dictionary

"conceal" in British English

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concealverb [ T ]

us uk /kənˈsiːl/

C2 to prevent something from being seen or known about:

The listening device was concealed in a pen.
I tried to conceal my surprise when she told me her age.
It was said that the police concealed vital evidence.
Is there something you're concealing from me?
Synonym

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concealed
adjective us uk /-ˈsiːld/

The robbery had been recorded on a concealed security camera.
He was carrying a concealed weapon.
The room had concealed lighting.

(Definition of “conceal” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"conceal" in American English

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concealverb [ T ]

us /kənˈsil/

to prevent something from being seen or known about; to hide something:

He made no attempt to conceal his satisfaction.

(Definition of “conceal” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"conceal" in Business English

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concealverb [ T ]

uk /kənˈsiːl/ us

to not tell somebody about something that they have the right to know about:

Do not conceal health problems from a prospective insurer.

(Definition of “conceal” from the Cambridge Business English Dictionary © Cambridge University Press)