1. not in danger; out of harm's reach
You’ll be safe here.
2. free from risk
Synonyms: riskless, harmless
Antonyms: harmful, dangerous
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.
5. properly secured
Hyponyms: binary-safe, fail-safe, thread-safe, type-safe
The documents are safe.
6. (used after a noun, often forming a compound) not susceptible to a specified source of harm
11. (programming) of a programming language, type-safe or more generally offering well-defined behavior despite programming errors