正: Upright and pure. In names, it often conveys the meaning of handling affairs with justice and fairness, which is conducive to receiving support from noble benefactors.
淞:
Songjiang, the name of a river, carries no specific meaning when used in personal names.
Meaning: The character 'Zheng' signifies righteousness and fairness, while 'Song' refers to frost formed from water vapor, symbolizing purity and resilience.