Englishfor English speakers
skilled
Adjective
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When someone is skilled, it means they are very good or talented at doing something.
You seem to be very skilled in sewing! Who taught you so well?
operative
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adjective
being in force or having or exerting force
operative regulations
the major tendencies operative in the American political system
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adjective
effective; producing a desired effect
the operative word
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adjective
(= surgical)
relating to or requiring or amenable to treatment by surgery especially as opposed to medicine
a surgical appendix
a surgical procedure
operative dentistry
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adjective
(= running, functional, working)
(of e.g. a machine) performing or capable of performing
in running (or working) order
a functional set of brakes
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noun
(= secret agent)
a person secretly employed in espionage for a government
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noun
(= private detective)
someone who can be employed as a detective to collect information