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English definition of “thou”

thou

pronoun uk   /ðaʊ/ old use us  
you, used when speaking to one personPersonal pronouns

thou

noun [C] uk   /θaʊ/ (plural thou) us  
informal for thousand, especially when referring to an amount of money: "How much do you reckon it cost him?" "About thirty thou."Specific amounts of money
(Definition of thou from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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