Longman Dictionary of Contemporary English - friendly

~1 adj 1 behaving towards someone in a way that shows you like them and are ready to talk to them or help them  (She's cheerful and friendly the whole time. | a friendly smile) +to/towards  (The local people are always friendly to visitors.) 2 be friendly with sb to be friends with someone  (Betty's very friendly with the Jacksons.) 3 not at war with your own country, or not opposing you  (friendly nations) 4 BrE a friendly game is played for pleasure or practice, and not because it is important to win  (a friendly match against AC Milan) 5 environmentally friendly/ozone friendly etc not damaging to the environment etc  (environmentally friendly washing powders) 6 friendly fire bombs, bullets etc that accidentally kill people who are fighting on the same side  (- see also user friendly) - friendliness n ~2 n BrE a game played for pleasure or practice, and not because it is important to win