(archaic) In a friendly manner, like a friend.

(sports) A game which is of no consequence in terms of ranking, betting etc. / A person or entity on the same side in a conflict.

(uncommon, slang) Term of address.

Causing lesser, little, or no harm to the environment.

Weapons fire from allied or friendly forces, as opposed to fire coming from enemy forces or enemy fire.

(Britain, of tuna or other seafood) caught using fishing nets that lessen the chances of killing dolphins.

(uncountable) The condition of being friends. / (countable) A friendly relationship, or a relationship as friends. / (uncountable) Good will.

(rare) In a friendly manner; like a friend; warmly; kindly.

plural of friendship

(law) The situation where a person sues another person (friend) purely to settle a point of (unsettled) law.