noun
open-air market; outdoor market
Refers to a market held outdoors, often with stalls or vendors selling fresh produce, crafts, or food.
週末に青空市場で新鮮な野菜を買った。
I bought fresh vegetables at the open-air market on the weekend.
Compound of 青空 (aozora, 'blue sky') and 市場 (ichiba, 'market'), literally 'blue-sky market'.