Englishfor English speakers
sophisticated
Adjective
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When something is sophisticated, it is very complicated and difficult to understand for someone who is not knowledgeable in that area.
This key is very sophisticated, is it a key to a secret passage?
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When something is sophisticated it is very high class, very refined, cultured, the very best quality.
She was a very sophisticated young woman, who always looked stunning, in beautifully designed dresses.
equipment
Noun
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Your equipment is the things that you use to do a job or sport.
Soccer is a popular game because you need very little equipment to play--just a ball and an open space.
The soldiers had to carry all their equipment on their backs.
The computer equipment was old and often broke down.