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clean

adjective (NOT ROUGH)
 
 
/kliːn/

Definition

having no rough edges, and smooth, straight, or equally balanced: I've broken my leg, but the doctor says that it's a clean break, so it should heal easily. A good clean hit from Pietersen sent the ball straight out to the boundary. What he liked about the car was its clean lines. I tried to make a clean cut, but the knife wasn't sharp enough.Straight, even and level
(Definition of clean adjective (NOT ROUGH) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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