What is the meaning of friendly?

noun

• Troops belonging to or allied with your own military forces.
  • usage: "friendlies came to their rescue"

adjective

• Characteristic of or befitting a friend.
  • usage: "friendly advice"; "a friendly neighborhood"; "the only friendly person here"; "a friendly host and hostess"
• Inclined to help or support; not antagonistic or hostile.
  • usage: "a government friendly to our interests"; "an amicable agreement"
  • synonyms: favorable, well-disposed
• Easy to understand or use.
  • usage: "user-friendly computers"; "a consumer-friendly policy"; "a reader-friendly novel"
• Of or belonging to your own country's forces or those of an ally.
  • usage: "in friendly territory"; "he was accidentally killed by friendly fire"