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  • big brother
    big brother
    noun
    an elder brother.
  • Big Brother
    Big Brother
    noun
    a person, organization, etc, that exercises total dictatorial control
Synonyms

big brother

American  

noun

  1. an elder brother.

  2. (sometimes initial capital letters) a man who individually or as a member of an organized group undertakes to sponsor or assist a boy in need of help or guidance.

  3. (usually initial capital letters) the head of a totalitarian regime that keeps its citizens under close surveillance.

  4. (usually initial capital letters) the aggregate of officials and policy makers of a powerful and pervasive state.

  5. Citizens Band Radio Slang. a police officer or police car.


Big Brother British  

noun

  1. a person, organization, etc, that exercises total dictatorial control

  2. a television gameshow format in which a small number of people living in accommodation sealed off from the outside world are constantly monitored by TV cameras. Viewers vote each week to expel a person from the group until there is only one person left, who wins a cash prize

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does Big Brother mean? A big brother can be an older male, related or not, who protects a younger person. Big Brother (usually uppercase) also refers to an omnipresent, usually governmental authority that monitors everyone's every move. How is Big Brother pronounced?[ big bruhth-er ]

Etymology

Origin of big brother

1860–65; 1949 big brother for defs. 3, 4, the epithet of a dictator in G. Orwell's novel 1984

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Patricia McLure, one of Anthony Littler's few surviving close relatives, holds a photograph of the cousin who was "like a big brother"

From BBC Jul. 10, 2026

"I remember being that guy he came and had chats with. I was almost like a big brother," Wells told BBC Sport.

From BBC Jun. 23, 2026

“I hope I’m not annoying him,” Simpson said, “but I really appreciate the big brother kind of role he’s playing in my development.”

From Los Angeles Times Jun. 22, 2026

At other times, Jeremy is sweet and docile, playing the big brother role with no difficulty.

From Salon May 25, 2026

And then his big brother asked him if he believed there was really a Tooth Fairy, and when he said no, the brother said he should return the money.

From "Maybe He Just Likes You" by Barbara Dee

Her Strictly appearance was however to turn her into a reality TV star, when she joined such shows as "Celebrity Big Brother".

From Barron's Jul. 10, 2026

She also appeared on the BBC's Strictly Come Dancing and was a runner-up on Celebrity Big Brother in 2018.

From BBC Jul. 10, 2026

Civil liberties campaigning group Big Brother Watch slammed the live facial recognition expansion as an "alarming escalation of an intrusive technology".

From Barron's Jun. 24, 2026

He also credited the festival for bringing him in contact with Joplin, who then was the lead singer of the rock band Big Brother and the Holding Company.

From Los Angeles Times Jun. 22, 2026

Big Brother added a few remarks on the purity and singlemindedness of Comrade Ogilvy’s life.

From "1984" by George Orwell

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