Did you mean: dijian dixin tixian daxian diqian duxian ?
| 底 | dǐ xiàn | bottom line; the limit of what one is prepared to accept / (sports) baseline / (sewing) under thread / spy; informer; plant | 
| 地 | dì xiàn | earth (wire) / ground | 
| 底 | dǐ xiàn | lowest limit / bottom line | 
| 低 | dī xiàn | to sink / to settle |