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    constant

    US /ˈkɑnstənt/

    UK /'kɒnstənt/

    • Adjective
    • Happening frequently or without pause
    • Remaining the same over time or not changing.
    • Noun
    • Thing that happens always or at a regular rate
    • A physical quantity that is believed to have a fixed value and is used in calculations.
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    negative

    US /ˈnɛɡətɪv/

    UK /'neɡətɪv/

    • Noun
    • The opposite to a positive electrical charge
    • In grammar, containing words such as 'no' or 'not'
    • Adjective
    • Being harmful, unwanted or unhelpful
    • In mathematics, being less than zero
    effective

    US /ɪˈfɛktɪv/

    UK /ɪˈfektɪv/

    • Adjective
    • Working efficiently to produce a desired result
    • In operation; in force.
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    treat

    US /trit/

    UK /tri:t/

    • Transitive Verb
    • To pay for the food or enjoyment of someone else
    • To use medical methods to try to cure an illness
    • Noun (Countable/Uncountable)
    • Something you buy for others as a surprise present
    • something that tastes good and that is not eaten often
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