big brother

noun
Updated on: 18 Feb 2018

Definition of big brother

1 : an older brother
2 : a man who serves as a companion, father figure, and role model for a boy
3 capitalized both Bs
[Big Brother, personification of the power of the state in 1984 (1949) by George Orwell]
a : the leader of an authoritarian state or movement
b : an all-powerful government or organization monitoring and directing people's actions

Recent Examples of big brother from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'big brother.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of big brother

1809


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