An open area in a town housing a public market, often on just one day per week; a marketplace.(noun)
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Use "market square" in a sentence
"The Guildhall looked the part, the market square before it filled with a bustling, good-natured throng, the gentry rubbing shoulders with farmers and their wives, laborers and field workers, all eyeing the wide variety of wares displayed on the stalls and trestles."
"On a certain day he stood in the market square to see their first stage-coach put together."
"“We can hang him in the main market square of Bolgorka."