also: アイディアだし
noun
brainstorming; putting forward ideas
Refers to the act of generating or proposing ideas, often in a group setting. Common in business and creative contexts.
会議でアイデア出しをしましょう。
Let's brainstorm in the meeting.
新商品のアイデア出しに時間をかけた。
We spent time generating ideas for the new product.
Compound of アイデア (idea) and 出し (dashi, from 出す 'to put out'), literally 'putting out ideas'.