留意
liúyì · HSK 7
be careful
👀 留 keep + 意 mind = keep it in mind, so pay attention and be careful
留 means to keep or retain, 意 means mind or intention. When you keep something in your mind, you stay alert to it, so 留意 means to be careful and watch out for it.
留 — 卯 (top) + 田 (field)
Originally a phono-semantic compound: 田 (field) suggests staying on the land, with 卯 hinting at the sound. Over time it came to mean 'remain, stay, keep,' as in keeping someone on the land or holding something in place. Modern uses include 留学 (study abroad) and 保留 (retain).