BROTHER

[noun] [C] - a man or boy with the same parents as another personDo you have any brothers and sisters?I have three brothers and a sister.Johnny is my younger/older/big/baby/little brother.It's your brother on the phone.'Brothers' is a way of speaking to or of people who are members of the same group or who share a similar way of thinking.Let us unite, brothers! [as form of address]Brother is the title of a man, such as a monk, who belongs to a religious organization.Brother Michael and Brother John were deep in conversation.'I am not my brother's keeper' means that you are not responsible for what someone else does or for what happens to them.