Safety is a feeling that no bad things will happen. Security avoids things to happen that you don't want to. The police keep public safety, which stops crimes happen. Safety hats protect the head from injury. Houses provide safety from the weather.
The opposite of safety is danger.
Safety measures are activities and precautions taken to improve safety. Here are list of common safety measures include:
- Chemical analysis
- Geological surveys to determine whether land or water sources are polluted, how firm the ground is at a potential building site, etc.
- Destructive testing of samples
- Road safety measures