also: うぶだしひん
noun
first-time sale; item sold for the first time
Refers to the act of selling something for the first time, or an item being offered for sale for the first time. Often used in auction or retail contexts.
このオークションには初出品の絵画が数点含まれている。
This auction includes several paintings being sold for the first time.
初出品の商品は注目を集めやすい。
Items on sale for the first time tend to attract attention.
Compound of 初 (hatsu, 'first') + 出品 (shuppin, 'exhibit; put on sale'). The reading うぶだしひん is a kun'yomi-based variant using 初 (ubu) + 出し (dashi) + 品 (hin).