底线 Traditional 底線 dǐ xiàn 🔊 bottom line HSK 7–9 + Review this word Meanings dǐ xiàn 底線 bottom line; the limit of what one is prepared to accept(sports) baseline(sewing) under threadspy; informer; plant Its characters 底dǐbottom; baseHSK 4线xiànthreadHSK 6