Big
Big adjective - Of a size greater than average of its kind.
Usage example: bought a big apple to quench his raging appetite
Vast is a synonym for big in large topic. In some cases you can use "Vast" instead the word "Big" as an adjective or a noun, when it comes to topics like size, huge. popular alternative
Nearby Word: bigness
Mutual synonyms
Both words in one sentence
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The city is actually just a vast swampland at the time (which is why Disney was able to buy so much land to make Disney World as big as they wanted, and other huge theme parks were built there).
Source: Western Animation / Minions -
Big Fancy House: Haruka's summer island house; not only the house itself is vast and luxurious, its bathroom is even more over-the-top; to the point the main protagonist wonders what's the purpose of building such a huge bathroom, and comments that he'll never understand rich people.
Source: Visual Novel / Double Cast -
Big Good: Serves as a major manipulator of events in the first game, and later games imply that he's using his vast web of connections to improve things behind the scenes.
Cite this Source
Vast and Big. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/big/vast
Big & Vast. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/big/vast>.
Vast or Big. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/big/vast.
Google Ngram Viewer shows how "big" and "vast" have occurred on timeline