Meaning

• A game which is of no consequence in terms of ranking, betting etc.

  "This match is merely a friendly, so don't worry too much about it."

• A person or entity on the same side in a conflict.

Meaning

• Generally warm, approachable and easy to relate with in character.

  "Your cat seems very friendly."

• Inviting, characteristic of friendliness.

  "He gave a friendly smile."

• Having an easy or accepting relationship with something.

  "a dog-friendly café"

• Without any hostility.

  "a friendly competition"

• Promoting the good of any person; favourable; propitious.

  "a friendly breeze or gale"

• Of or pertaining to friendlies (friendly noun sense 2, below). Also applied to other bipolar confrontations, such as team sports

  "The soldier was killed by friendly fire."

• Being or relating to two or more natural numbers with a common abundancy.

  "friendly"

• (in compounds) Compatible with, or not damaging to (the compounded noun).

  "Organic farms only use soil-friendly fertilisers."