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ENGLISH · A WORD WITH POSSIBILITIES

valid.

Well-grounded or justifiable, pertinent.

5 characters2 syllables approx.English language

Meaning & usage

adj/ˈvælɪd//ˈvæ.lɪd/Hong-Kong/ˈveɪ.lɪd/Hong-Kong

  1. Well-grounded or justifiable, pertinent.

    I will believe him as soon as he offers a valid answer.

  2. Acceptable, proper or correct; in accordance with the rules.

    A valid format for the date is DD/MM/YY.
    Do not drive without a valid license.

  3. Related to the current topic, or presented within context, relevant.

  4. Of a formula or system: such that it evaluates to true regardless of the input values.

  5. Of an argument: whose conclusion is always true whenever its premises are true.

    An argument is valid if and only if the set consisting of both (1) all of its premises and (2) the contradictory of its conclusion is inconsistent.

  6. Genuine - as distinguished from efficient or regular - sacrament.

Where this word comes from

Etymology tree Proto-Indo-European *h₂welh₁- Proto-Indo-European *-éh₁ti Proto-Indo-European *-yeti Proto-Indo-European *-éh₁yeti Proto-Indo-European *h₂wl̥h₁éh₁yeti Proto-Italic *walēō Latin valeō Proto-Indo-European *dʰeh₁-der. Proto-Italic *-iðos Latin -idus Latin validusder. Middle French validebor. English valid Borrowed from Middle French valide (“healthy, sound, in good order”), from Latin validus, from valeō (“to be strong, to be healthy, to be worth”) + -idus, from Proto-Indo-European *h₂welh₁- (“be strong”).

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.