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English definition of “jot”

jot

verb [T usually + adv/prep] uk   /dʒɒt/ us    /dʒɑːt/ (-tt-)
to make a quick short note of something: Could you jot your address and phone number in my address book?
Phrasal verbs

jot

noun uk   /dʒɒt/ us    /dʒɑːt/ informal
not a/one jot not at all or not even a small amount: Don't listen to her! There's not a jot of truth (= there is no truth) in what she's saying. None of the committee's proposals will matter a jot (= they will not matter) if no one reads their report.
(Definition of jot from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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