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English definition of “safe”

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safe

adjective uk   /seɪf/ us  

safe adjective (NOT IN DANGER)

A1 not in danger or likely to be harmed: In some cities you don't feel safe going out alone at night.B1 not harmed or damaged: She said that all the hostages were safe.safe and sound C2 completely safe and without injury or damage: After three days lost in the mountains, all the climbers arrived home safe and sound.
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safe adjective (NOT CAUSING HARM)

A2 not dangerous or likely to cause harm: a safe play area for children a safe driver That ladder doesn't look safe. She wished us a safe journey. Is this medicine safe for children? It's safe to cross the road now.

safe adjective (PLACE)

C1 (of a place) where something is not likely to be lost or stolen: Keep your passport in a safe place.

safe adjective (NO RISK)

C1 used to refer to 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 adjective (PARLIAMENT)

If an official position in parliament is safe, it is likely to be won by the political party that has won it at previous elections: a safe Conservative seat
safeness
noun [U] uk   /ˈseɪf.nəs/ us  
I'm a bit worried about the safeness of this machine for (= whether this machine will cause any danger to) children.

safe

noun [C] uk   /seɪf/ us  
a strong box or cupboard with special locks where valuable things, especially money or jewels (= precious stones), are kept: Thieves broke into/cracked (= opened by force) the safe and stole everything in it.
(Definition of safe from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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