noun
individual item; single article
Refers to an item sold or considered on its own, not as part of a set or bundle. Common in retail and ordering contexts.
この商品は単品でも購入できます。
This product can be purchased as an individual item.
セットではなく、単品で注文した。
I ordered it as a single item, not as part of a set.
noun
one item from a set; single item out of a set
Used when picking or referring to one specific item from a larger collection or set, such as a single piece from a dinner set or a single component from a kit.
食器セットから単品でお皿だけ買えますか？
Can I buy just a plate as a single item from the dinner set?