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    crucial

    US /ˈkruʃəl/

    UK /'kru:ʃl/

    • Adjective
    • Extremely important or necessary
    • Of great importance to the success of something.
    struggle

    US /ˈstrʌɡəl/

    UK /'strʌɡl/

    • Verb (Transitive/Intransitive)
    • To try very hard to do something difficult
    • To fight or struggle violently
    • Noun (Countable/Uncountable)
    • Strong efforts made to do something difficult
    • A difficult or challenging situation or task
    commitment

    US /kəˈmɪtmənt/

    UK /kə'mɪtmənt/

    • Noun
    • Permanent love or concern for person, thing
    • Promise or decision to do something for a purpose
    tough

    US /tʌf/

    UK /tʌf/

    • Adjective
    • (Of food) difficult to chew or bite through
    • Very difficult to do or deal with
    • Noun
    • A rough and aggressive person.
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