noun
open-air market; outdoor market
Refers to a market held outdoors, often with stalls or booths set up temporarily.
毎週日曜日に公園で露店市が開かれる。
An open-air market is held in the park every Sunday.
フリーマーケット is a flea market, often implying second-hand goods, while 露店市 is a broader term for any outdoor market.
Compound of 露店 (ろてん, 'street stall') and 市 (いち, 'market').