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safe

adjective (NO RISK)
 
 
/seɪf/

Definition

C1 describes things that do not involve any risk: I think we should go for the safest option (= the one that involves the least risks). He never usually remembers my birthday, so it's a safe bet (= I am certain) he'll forget again this time!Safe and secure safeness
 
 
/ˈseɪf.nəs/ noun [U]
I'm a bit worried about the safeness of this machine for (= whether this machine will cause any danger to) children.Safe and secure
(Definition of safe adjective (NO RISK) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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