What is the meaning of safe?

noun

• Strongbox where valuables can be safely kept.
• A ventilated or refrigerated cupboard for securing provisions from pests.
• Contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse.
  • synonyms: condom, rubber, safety, prophylactic

adjective

• Free from danger or the risk of harm.
  • usage: "a safe trip"; "you will be safe here"; "a safe place"; "a safe bet"
• Of an undertaking. ( secure from risk)
• Having reached a base without being put out.
  • usage: "the runner was called safe when the baseman dropped the ball"
• Financially sound.
  • usage: "a good investment"; "a secure investment"
  • synonyms: dependable, good, secure