Definition of brother
- a lay brother
We must support our brothers and sisters fighting overseas.
the brothers in a monastery
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'brother.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: a boy or man who has one or both of the same parents as you
: a man who is from the same group or country as you
: a male member of a religious group
What made you want to look up brother? Please tell us where you read or heard it (including the quote, if possible).