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very similar
two peas in a pod
somebody who you can talk to about everything, who makes you feel comfortable
close friend
to be someone's friend
be friends with
to become someone's friend
make friends
to communicate with someone by using a phone or writing to them
get in touch
to start to be familiar with someone
get to know
to communicate with someone and learn or discuss what has been happening in their life
catch up with
a talk, especially an informal one, between two or more people, in which news and ideas are exchanged
conversation
to like each other very much and become friends very quickly
get on like a house on fire
to be ready to protect or defend someone
have someone's back
to argue with someone and stop being friendly with them
fall out with
free and ready to do something
available
the part of your life when you are an adult (a grown-up)
adulthood