A-board
01
Aボード, 折りたたみ看板
a type of portable advertising sign, typically made of wood or metal, that is hinged at the top and can be folded to resemble the letter "A," and often used to promote a business or event
例
The café placed an A-board outside to advertise their daily specials.
カフェは、毎日のスペシャルメニューを宣伝するために外にAボードを置きました。
