The kanji 案 primarily conveys the concept of an "idea," "plan," "suggestion," or "proposal." It suggests a thought that is put forward for consideration, or a design for future action. It often implies a degree of thoughtfulness or consideration.

・On-yomi (音読み): アン (an) ・Kun-yomi (訓読み): あん (an) – In this case, 案 is primarily used in compound words. There is no stand-alone Kun-yomi reading.

⚫︎ 計画案 Translation: Keikaku an - Plan, proposal ⚫︎ 提案案 Translation: Teian an - Proposal, suggestion ⚫︎ 解決案 Translation: Kaiketsu an - Solution, plan of action

The kanji 案 is a pictophonetic compound. The top part is 宀, which means "roof" or "house." The bottom part is 安, which means "peace" or "calm." The combination suggests that inside the house, you're at peace and can thoughtfully devise an 案.