safe

1. A box, usually made of metal, in which valuables can be locked for safekeeping.
2. A condom.
3. A ventilated or refrigerated chest or closet for securing provisions from noxious animals or insects.
4. A safety bicycle.

verb

To make something safe.

1. Not in danger; out of harm's reach.

   You’ll be safe here.

2. Free from risk.

   It’s safe to eat this.

3. Providing protection from danger; providing shelter.

   We have to find a safe spot, where we can hide out until this is over.

4. When a batter successfully reaches first base, or when a baserunner successfully advances to the next base or returns to the base he last occupied; not out.

   The pitcher attempted to pick off the runner at first, but he was safe.

5. Properly secured.

   The documents are safe.

6. (used after a noun, often forming a compound) Not susceptible to a specified source of harm.

   dishwasher-safe

7. Great, cool, awesome, respectable; a term of approbation, often as interjection.
8. Lenient, usually describing a teacher that is easy-going.
9. Reliable; trusty.
10. Cautious.
11. Of a programming language, type-safe or more generally offering well-defined behavior despite programming errors.