EN[vɑːst] [væst] [-ɑːst]

    Definition of vast in English Dictionary

  • NounPLvasts
    1. (poetic) A vast space.
    2. AdjectiveCOMvasterCOMmore vastSUPvastestSUPmost vast
      1. Very large or wide (literally or figuratively).
        1. The Sahara desert is vast.
        2. There is a vast difference between them.
      2. Very great in size, amount, degree, intensity, or especially extent.
        1. Last spring, the periodical cicadas emerged across eastern North America. Their vast numbers and short above-ground life spans inspired awe and irritation in humans—and made for good meals for birds and small mammals.
      3. OBS Waste; desert; desolate; lonely.
      4. More Examples
        1. Used in the Middle of Sentence
          • His vast store of jokes means he has something funny to say in every situation. ‎
          • The vast majority of these studies have focused on the variability in the CYP3A and ABCB1 genes, which are responsible for the metabolism and transport of anticalcineurin inhibitors [27 ,28 ].
          • While several classes of kinase inhibitors are highly selective (MEK, covalent modifying kinase inhibitors) many possess a vast polypharmacology across the kinome target-scape.
      • Part-of-Speech Hierarchy
        1. Adjectives
          • Nouns
            • Countable nouns
          Related Links:
          1. en vastness
          2. en vasty
          3. fr vaste
          4. en vasts
          5. en vastel
          Source: Wiktionary
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          Meaning of vast for the defined word.

          Grammatically, this word "vast" is an adjective. It's also a noun, more specifically, a countable noun.
          Difficultness: Level 1
          Easy     ➨     Difficult
          Definiteness: Level 8
          Definite    ➨     Versatile