Dear Babu Singh,
Welcome in the team. I found 02 definitions, which may clear you the meaning of "SAFETY".
1. Safety is the state of being "safe" (from French sauf), the condition of being protected against physical, social, spiritual, financial, political, emotional, occupational, psychological, educational or other types or consequences of failure, damage, error, accidents, harm or any other event which could be considered non-desirable. Safety can also be defined to be the control of recognized hazards to achieve an acceptable level of risk. This can take the form of being protected from the event or from exposure to something that causes health or economical losses. It can include protection of people or of possessions.
2. Relative freedom from danger, risk, or threat of harm,injury, or loss to personnel and/or property, whether caused deliberately or by accident.
Also find the attached PDF file fro information.
Regards,
Inderjeet Singh "Born to lead."