Big Brother Definition

noun
An older brother.
American Heritage
One's older brother.
Webster's New World
A man who assumes the role of an older brother, as by providing guidance or protection.
American Heritage
A man who undertakes the role of friend and mentor to a disadvantaged boy, as through a social agency.
Webster's New World
An omnipresent, seemingly benevolent figure representing the oppressive control over individual lives exerted by an authoritarian government.
American Heritage
pronoun
The nominal leader of Oceania in George Orwell's novel Nineteen Eighty-Four.
Wiktionary
By extension, a disparaging name for government surveillance considered to be too intrusive.
Wiktionary

Unwarranted, invasive, and discreet surveillance, especially of a people by its government.

Wiktionary

Other Word Forms of Big Brother

Noun

Singular:
big brother
Plural:
big-brothers

Origin of Big Brother

  • Sense 3, after Big Brother , a character in the novel 1984 by George Orwell

    From American Heritage Dictionary of the English Language, 5th Edition

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