also: ユー・ピー · ユーピー
noun
Used on floor plans and architectural drawings to label the upper floor; a direct loan from English 'up'.
この間取り図では、１階がリビングで、２階が「アップ」と書かれている。
On this floor plan, the first floor is the living room, and the second floor is labeled 'UP'.
Latin-alphabet spelling, often seen in floor plans and architectural contexts.
Explicit pronunciation spelling with interpunct; rarely used in practice.
Used on floor plans to mean 'downstairs', the opposite of アップ in this context.
Borrowed from English 'up', used in architectural floor plans to indicate the upper floor.