big brother
big
ˈbɪg
big
bro
brʌ
bra
ther
ðə
dhē

Definition & Meaning of "big brother"in English

Big brother
01

a powerful person or organization that invades people's privacy by controlling and monitoring their actions 

big brother definition and meaning
Disapproving
Idiom
Informal

What is the origin of the idiom "big brother" and when to use it?

The idiom "big brother" originated from George Orwell's dystopian novel "1984," published in 1949. In the novel, "Big Brother" symbolizes an all-powerful and oppressive government that maintains constant surveillance over its citizens, suppressing individual freedoms and manipulating their thoughts and actions. The character of Big Brother represents the embodiment of a totalitarian regime that exercises complete control and instills a sense of fear and conformity. It is commonly used in discussions about government surveillance, privacy concerns, and the erosion of personal freedoms.

Examples
Many people fear that the new system will turn the government into Big Brother. 
02

an older brother 

Grammatical Information
Animacy status
Human
Composition
Compound
Countable
Plural form
big brothers
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