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Safe

   Also found in: Dictionary/thesaurus, Medical, Legal, Acronyms, Idioms, Wikipedia 0.01 sec.
safe [sāf]
(ordnance)
Pertaining to ordnance constituted and set so as not to detonate or function accidentally.
safe
1. A tray with a waste pipe; placed below a fixture to catch overflow, below a pipe to catch leakage, etc.
2. A built-in or portable steel-enclosed repository, designed to protect stored materials against fire and/or burglary.
safe - A safe program analysis is one which will not reach invalid conclusions about the behaviour of the program. This may involve making safe approximations to properties of parts of the program. A safe approximation is one which gives less information.

For example, strictness analysis aims to answer the question "will this function evaluate its argument"?. The two possible results are "definitely" and "don't know". A safe approximation for "definitely" is "don't know". The two possible results correspond to the two sets: "the set of all functions which evaluate their argument" and "all functions". A set can be safely approximated by another which contains it.
Safe 

a fireproof steel box used to safeguard documents, currency, coins, and valuables. The word is sometimes also used to designate bank vaults that have walls of steel or reinforced concrete and armored doors equipped with combination locks and automatic alarm systems.
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Separation from her grandfather was the greatest evil she could dread; and feeling for the time as though, go where they would, they were to be hunted down, and could never be safe but in hiding, her heart failed her, and her courage drooped.
The Old Curiosity Shop by Dickens, Charles View in context
For that he thanked Heaven; and he was thankful also that she at least was safe in the heart of the world's greatest city.
The Beasts of Tarzan by Burroughs, Edgar Rice View in context
It would not be safe to admit him to the sheepfold.
Fables by Aesop View in context
 
 
 
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