Meaning of CHECK in English



1. to make sure that something is true or correct


to examine something or someone : ↑ EXAMINE

see also

↑ TEST (9-10)



1. to make sure that something is true or correct

▷ check /tʃek/ [intransitive/transitive verb]

to do something in order to find out whether something is really true or correct :

▪ ‘Are you sure this is the right phone number?’ ‘Yes, I’ve just checked.’

▪ You’d better check the figures one more time - we don’t want any mistakes.

check that

▪ I’ll just check that I locked the door.

▪ Check that the meat is cooked thoroughly before serving it.

check if/whether

▪ Before your trip, check if your insurance covers you abroad.

check to see if/whether

▪ Let’s check to see if she’s OK.

▷ check out /ˌtʃek ˈaʊt/ [transitive phrasal verb]

to make sure that something, especially something that someone else has told you, is actually true :

check out something

▪ We got in touch with the bank to check out the suspect’s story.

check something out

▪ What he said didn’t seem quite right, so I decided to check it out.

▷ make sure/make certain /ˌmeɪk ˈʃʊəʳ, ˌmeɪk ˈsɜːʳtn/ [verb phrase]

to check that a situation is really the way you want or expect it to be :

▪ I don’t think Jo’s back yet, but you can knock on her door just to make sure.

make sure/make certain (that)

▪ Make certain the car is in good condition before you sign the rental agreement.

▪ I phoned the hotel to make sure that they had reserved a room for us.

▷ double-check /ˌdʌb ə l ˈtʃek/ [intransitive/transitive verb]

to check something a second time, so that you are completely sure :

▪ ‘Did you switch the heating off?’ ‘Yes, I double-checked.’

▪ I don’t think I made a mistake. I checked and double-checked all my calculations.

double-check that

▪ Double-check that the computer file was properly copied.

▷ verify /ˈverɪfaɪ, ˈverəfaɪ/ [transitive verb] formal

to officially check a fact or statement and show that it is correct :

▪ You can verify the facts in the report by calling his office.

verify that

▪ Doctors have verified that the injury was indeed work-related.

verification /ˌverɪfəˈkeɪʃ ə n, ˌverəfəˈkeɪʃ ə n/ [uncountable noun]

▪ The documents are being sent to the State Department for verification.

▷ confirm /kənˈfɜːʳm/ [transitive verb]

to check that an arrangement you have made has happened or is still going to happen :

▪ Have you called to confirm your flight yet?

confirm that

▪ Let me just confirm that the money has arrived in your account.

confirmation /ˌkɒnfəʳˈmeɪʃ ə nǁˌkɑːn-/ [uncountable noun]

▪ We’re waiting for written confirmation of the reservations.

▷ ascertain /ˌæsəʳˈteɪn/ [intransitive/transitive verb] formal

to find out if a fact that you think is true is really true :

ascertain something

▪ The case remains a mystery. The police were never able to ascertain the true facts.

ascertain that

▪ The pathologist ascertained that the victim had died from a gunshot wound.

ascertain how/when/why etc

▪ A doctor should examine the patient to ascertain where the pain is localized.


▪ As far as we have been able to ascertain, our client is not involved in anything illegal.

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