noun
imitation; similar article; similar goods
Refers to a product that closely resembles another, often in the context of knockoffs, generics, or competing items. Can be neutral or slightly negative depending on context.
このバッグはブランド品の類似品だ。
This bag is an imitation of a branded product.
類似品との違いを説明してください。
Please explain the difference from similar products.
コピー商品 is a more casual term for a copy or knockoff, often implying lower quality or illegality.
Compound of 類似 (るいじ, 'similarity') and 品 (ひん, 'goods').