- 志愿者 zhìyuànzhě volunteerA person who acts out of their own free will, such as a subject for an experiment or a person enlisting for a task
- 志愿军 zhìyuànjūn volunteer armyAn army composed of volunteers from one or more countries who participate in another country's foreign or civil war, typically to resist external aggression.
- 志愿兵 zhìyuànbīng volunteer soldierA soldier who joins the army of their own free will; in China, specifically refers to a soldier who continues to serve voluntarily after their term of mandatory service expires.
- 志愿书 zhìyuànshū written applicationA written application or pledge form expressing one's willingness or intentions to a person or organization.
- 志愿兵役制 zhìyuànbīngyìzhì volunteer military systema system of military recruitment based on voluntary service rather than conscription
- 中国人民志愿军 zhōngguórénmínzhìyuànjūn Chinese People's VolunteersThe army deployed by China to participate in the Korean War beginning in 1950.