Meaning of “discover” in the English Dictionary

"discover" in British English

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discoververb

uk /dɪˈskʌv.ər/ us /dɪˈskʌv.ɚ/

B1 [ T ] to find information, a place, or an object, especially for the first time:

Who discovered America?
We searched all morning for the missing papers and finally discovered them in a drawer.
[ + question word ] Scientists have discovered how to predict an earthquake.
[ + (that) ] She discovered (that) her husband was having an affair.
[ + to infinitive ] Following a routine check-up, Mrs Mason was discovered to have heart disease.
[ + obj + -ing verb ] The boss discovered him stealing money from the cash register.

[ T often passive ] to notice that a person has a special ability or quality and to help them to become successful:

Los Angeles is full of young actors working as waiters, hoping to be discovered by a movie agent.

More examples

discoverer
noun [ C ] uk /dɪˈskʌv.ər.ər/ us /dɪˈskʌv.ɚ.ɚ/

Jim Watson and Francis Crick were the discoverers of the structure of DNA.

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

"discover" in American English

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discoververb [ T ]

us /dɪˈskʌv·ər/

to find something for the first time, or something that had not been known before:

[ + (that) clause ] Doctors later discovered (that) he had a cut on his left ankle.
Researchers hope to discover new treatments that may help people suffering from migraine headaches.

To discover is also to realize or learn:

[ + that clause ] When you go on a trip, you always discover that you forgot a few things.
discoverer
noun [ C ] us /dɪˈskʌv·ər·ər/

The Canadians Frederick Banting and Charles Best were the discoverers of insulin.

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