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English definition of “sound”

sound

adjective     /saʊnd/
showing good judgment, or able to be trusted: A sound money-management strategy that has the added benefit of freeing up cash for new investments. The booklet gives sound advice on how to choose a with-profits bond.
in good condition: The bridge is structurally sound.
complete or detailed: A sound knowledge of law is essential.
(Definition of sound adjective from the Cambridge Business English Dictionary © Cambridge University Press)
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