Definition of public square
1
: an open public area in a city or town where people gather
St. Mark's Square in Venice is sinking at a time when this Italian city's popularity is rising. The world's most famous public square now floods an average of three out of every five days.— Tom Crosby
2
: the sphere of public opinion
In an August 2007 speech, then-New York governor Eliot Spitzer expounded upon Reinhold Niebuhr and the virtues of humility in the public square.— Lisa Miller … using legal action to cow an opponent into silence, and withdrawal from the public square.— Mark Steyn
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Merriam-Webster unabridged
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Time Traveler for public square
The first known use of public square was in 1757
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