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English definition of “fundamentals”

fundamentals

noun [plural]     /ˌfʌn.dəˈmen.təlz/ US  /-t̬əlz/
the main or most important rules or parts: It's important for children to be taught the fundamentals of science.Information and messages
(Definition of fundamentals noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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