noun
rough draft; rough proposal
A preliminary, unpolished version of a plan, document, or design. Used in business and creative contexts.
まずラフ案を出して、それから細かいところを詰めましょう。
Let's first put together a rough draft, then work out the details.
デザイナーにラフ案をいくつか描いてもらった。
I had the designer sketch a few rough proposals.