Other forms: marketplaces
A marketplace is where goods are traded, or the world of trade itself. The village marketplace, the marketplace of ideas, compete in the marketplace.
The marketplace of ideas is the standing metaphor for free debate, and the assumption inside it, that the best idea wins, is exactly what people argue about. Online it names a site where many sellers trade under one roof.
1nounmarketplaceWhere goods are traded, or the world of trade itself.
“Farmers sell fresh fruit and vegetables in the town marketplace every Saturday.”
marketplace is a place.
Market plus place, from Latin mercatus, trade.
From market + place.
Etymology from Wiktionary, CC BY-SA