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English definition of “sub”

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sub

noun [C]  /sʌb/ us  

sub noun [C] (REPLACEMENT)

short form of substitute teacher

sub noun [C] (SHIP)

short form of submarine : a nuclear sub

sub noun [C] (FOOD)

short form of submarine (sandwich)

sub

verb [I]  /sʌb/ (-bb-) us  
to work as a substitute teacher: She subs at three schools.
Translations of “sub”
in Chinese (Traditional) 錢, 訂閱費,訂購款, 服務費…
in Chinese (Simplified) 钱, 订阅费,订购款, 服务费…
(Definition of sub from the Cambridge Academic Content Dictionary © Cambridge University Press)
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“sub” in American English

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