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    complex

    US /kəmˈplɛks, ˈkɑmˌplɛks/

    UK /'kɒmpleks/

    • Countable Noun
    • Group of buildings all used for the same purpose
    • Adjective
    • Not being simple; having many parts or aspects
    protein

    US /ˈprəʊˌtiːn/

    UK /ˈprəʊti:n/

    • Noun (Countable/Uncountable)
    • Group of molecules made from amino acids
    release

    US /rɪ'li:s/

    UK /rɪ'li:s/

    • Transitive Verb
    • To free someone from a responsibility or burden
    • To allow a film, music etc. to be sold/distributed
    • Noun
    • Act of freeing someone from a duty or burden
    • Introduction of a new product, film, book, etc.
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    cell

    US /sɛl/

    UK /sel/

    • Countable Noun
    • Smallest unit of living things in biology
    • Group of people - often from a secret organization
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