noun
original and copy
Used for documents, especially in official or administrative contexts, to refer to the original and its duplicate.
契約書の正副を確認してください。
Please check the original and copy of the contract.
noun-modifying (irregular)
principal and vice-
Prenominal use for paired titles such as chairman and vice-chairman, president and vice-president, etc.
正副議長が会議を進行した。
The chairman and vice-chairman conducted the meeting.