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  1. FUNDAMENTAL Definition & Meaning - Merriam-Webster

    Jun 1, 2012 · The meaning of FUNDAMENTAL is serving as a basis supporting existence or determining essential structure or …

  2. FUNDAMENTAL Definition & Meaning | Dictionary.com

    FUNDAMENTAL definition: serving as, or being an essential part of, a foundation or basis; basic; underlying. See examples of …

  3. FUNDAMENTAL | English meaning - Cambridge Dictionary

    FUNDAMENTAL definition: 1. forming the base, from which everything else develops: 2. more important than anything else…. Learn …

  4. Fundamental - definition of fundamental by The Free Dictionary

    1. serving as, or being an essential part of, a foundation or basis; basic; underlying: fundamental principles. 2. of, pertaining to, or …

  5. FUNDAMENTAL definition and meaning | Collins English Dictionary

    You use fundamental to describe things, activities, and principles that are very important or essential. They affect the basic nature of …

  6. fundamental, adj. & n. meanings, etymology and more | Oxford …

    There are 17 meanings listed in OED's entry for the word fundamental, three of which are labelled obsolete. See ‘Meaning & use’ for …

  7. fundamental - WordReference.com Dictionary of English

    basic: fundamental principles of physics. essential: a fundamental revision of a theory. being a starting point: a fundamental idea. a …

  8. fundamental - Wiktionary, the free dictionary

    May 11, 2026 · fundamental (plural fundamentals) (generic, singular) A basic truth, elementary concept, principle, rule, or law. An …

  9. Fundamental Definition & Meaning | Britannica Dictionary

    These ideas are of fundamental importance. The revolution brought about a fundamental change in the country. We need to make …

  10. Fundamental - Definition, Meaning & Synonyms | Vocabulary.com

    Fundamental has its roots in the Latin word fundamentum, which means "foundation." So if something is fundamental, it is a key …