TELL ON
FALL OUT WITH
AN ACQUAINTANCE
When you disappoint your friend because you did something that he or she didn't like
TO MAKE FRIENDS
AN ALLY
GET ALONG WELL WITH
TO HIT OFF (WITH SOMEONE)
LET DOWN
AN OLD FRIEND
A friend who knows very well and really trust
Someone you know but who is not really a friend.
To like someone and become really good friends.
You can say this to a friend who thanks you for doing something special for him or her.
STICK UP
To be loyal with your friend
THAT'S WHAT FRIENDS ARE FOR
To start a friendship
A FRIENDLY ADVICE
Someone who has been friend for a long time.
A country or person who helps you in a war or time of difficulty
When you stop being friend of somebody.
When you have a good relationship with somebody.
An opinion you give a friend
STAND BY
When you are loyal with your friend no matter the situation. That's what friends are for.
When you betrayed your friend saying to somebody what he or she has done.
A CLOSE FRIEND