主意 (zhǔ yì) means an idea, plan, or decision. 主 means master or primary and 意 means intention or meaning. Together they suggest a firm, formed idea or a plan of action. Common phrases: 好主意 (good idea), 坏主意 (bad idea), 出主意 (to come up with an idea), 拿主意 (to make a decision / call the shots). Note: 注意 (zhù yì, to pay attention) shares the same pronunciation pattern but different characters and meaning.