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English definition of “slang”

slang

noun [U]  /slæŋ/ us  
English very informal language that is used esp. in speech by particular groups of people and which sometimes includes words that are not polite: computer/teenage slang
slangy
adjective  /ˈslæŋ·i/ us  
a slangy style of writing
(Definition of slang from the Cambridge Academic Content Dictionary © Cambridge University Press)
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