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English definition of “compass”

compass

noun uk   /ˈkʌm.pəs/ us  

compass noun (DIRECTION DEVICE)

[C] a device for finding direction with a needle that can move easily and that always points to magnetic north

compass noun (MEASURING DEVICE)

compasses [plural] a V-shaped device that is used for drawing circles or measuring distances on maps

compass noun (LIMIT)

[U] formal a particular range (of ability, activity, interest, etc.): It's a musical instrument made of brass, somewhat like a cornet and with a similar compass. The discussion went beyond the compass of my brain.
(Definition of compass from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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