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    positive

    US /ˈpɑzɪtɪv/

    UK /ˈpɒzətɪv/

    • Adjective
    • Showing agreement or support for something
    • Being sure about something; knowing the truth
    • Noun
    • A photograph in which light areas are light and dark areas are dark
    immune

    US /ɪˈmjoon/

    UK /ɪˈmju:n/

    • Adjective
    • Having a special protection from, e.g. the law
    • Protected against a particular disease or condition because of antibodies or vaccination.
    effective

    US /ɪˈfɛktɪv/

    UK /ɪˈfektɪv/

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

    US /ˈkɚrənt, ˈkʌr-/

    UK /'kʌrənt/

    • Uncountable Noun
    • Electricity flowing through wires
    • Movement of water in a river, or air in the sky
    • Adjective
    • Happening or being in the present time
    • In general use or accepted by most people.
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