1. adjective /frˈɛndli/
a) Generally warm, approachable and easy to relate with in character.
Pets must be friendly, working animals rather obedient
b) Inviting, characteristic of friendliness.
He gave a friendly smile.
2. adverb /frˈɛndli/
In a friendly manner, like a friend.
3. noun /frˈɛndli/
a) A game which is of no consequence in terms of ranking, betting etc.
Even as friendlies, derbies often arouse strong emotions
b) Person or entity on the same side of a conflict.
Wikipedia foundation.