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compu ter-li terate ADJ If someone is computer-literate , they have enough skill and knowledge to be able to use a computer. □  We look for applicants who are numerate, computer-literate and energetic self-starters.

com|pu|ting /kəmpjuː t I ŋ/

1 N‑UNCOUNT Computing is the activity of using a computer and writing programs for it. □  Courses range from cookery to computing.

2 ADJ [ADJ n] Computing means relating to computers and their use. □  Many graduates are employed in the electronics and computing industries.

com|rade /kɒ mre I d, [AM ] -ræd/ (comrades ) N‑COUNT [usu poss N ] Your comrades are your friends, especially friends that you share a difficult or dangerous situation with. [LITERARY ] □  Unlike so many of his comrades he survived the war.

co mrade-in-a rms (comrades-in-arms ) also comrade in arms N‑COUNT [oft poss N ] A comrade-in-arms is someone who has worked for the same cause or purpose as you and has shared the same difficulties and dangers. □  …Deng Xiaoping, Mao's long-time comrade-in-arms.

com|rade|ly /kɒ mre I dli, [AM ] -ræd-/ ADJ [usu ADJ n] If you do something in a comradely way, you are being pleasant and friendly to other people. [FORMAL ] □  They worked in comradely silence.

com|rade|ship /kɒ mre I dʃ I p, [AM ] -ræd-/ N‑UNCOUNT Comradeship is friendship between a number of people who are doing the same work or who share the same difficulties or dangers. □ [+ of ] …the comradeship of his fellow soldiers.

con /kɒ n/ (cons , conning , conned )

1 VERB If someone cons you, they persuade you to do something or believe something by telling you things that are not true. [INFORMAL ] □ [V n + of/out of ] He claimed that the businessman had conned him of £10,000. □ [V n + into ] White conned his way into a job as a warehouseman. □ [be V -ed] The British motorist has been conned by the government. [Also V n]

2 N‑COUNT A con is a trick in which someone deceives you by telling you something that is not true. [INFORMAL ] □  Slimming snacks that offer miraculous weight loss are a con.

3 N‑COUNT A con is the same as a convict . [INFORMAL ]

4 → see also mod cons

5pros and cons → see pro

Con

1 N‑TITLE Con is the written abbreviation for constable , when it is part of a police officer's title. [BRIT ] □  …Det Con Terence Woodwiss.

2Con is the written abbreviation for conservative . [BRIT ] □  This issue could be resolved with a further debate with leaders of the Greens, SNP and Ukip, and no Lib, Lab or Con.

co n art|ist (con artists ) N‑COUNT A con artist is someone who tricks other people into giving them their money or property.

conc.Conc. is the written abbreviation for concessionary . [BRIT ] □  The guided tours cost £4 (conc. £3.50).

con|cat|ena|tion /kɒnkæ təne I ʃ ^ə n/ N‑UNCOUNT A concatenation of things or events is their occurrence one after another, because they are linked. [FORMAL ] □ [+ of ] …the Internet, the world's biggest concatenation of computing power.

con|cave /kɒ nke I v, kɒnke I v/ ADJ A surface that is concave curves inwards in the middle. □  …a concave stomach.

con|ceal /kənsiː l/ (conceals , concealing , concealed )

1 VERB If you conceal something, you cover it or hide it carefully. □ [V n] Frances decided to conceal the machine behind a hinged panel. □ [V -ed] Five people were arrested for carrying concealed weapons.

2 VERB If you conceal a piece of information or a feeling, you do not let other people know about it. □ [V n] Robert could not conceal his relief. □ [V n + from ] She knew at once that he was concealing something from her.