| 改 |
gǎi qiān | to change one's reservation / to transfer to a different flight, airline, bus or train |
| 改 |
gǎi | to change / to alter / to transform / to correct |
| 签 |
qiān | to sign one's name / to write brief comments on a document / inscribed bamboo stick (variant of 签) / visa |
| 签 |
qiān | inscribed bamboo stick (used in divination, gambling, drawing lots etc) / small wood sliver / label / tag |