- 自由基 zìyóujī free radical
- 自由化 zìyóuhuà liberalizationthe process of making something more liberal or freeing it from restrictions and control
- 自由泳 zìyóuyǒng freestylefreestyle swimming
- 自由自在 zìyóuzìzài unconstrainedacting or moving freely without any inhibition or restriction
- 自由主义 zìyóuzhǔyì liberalism
- 言论自由 yánlùnzìyóu free speechfreedom of speech
- 自由度 zìyóudù degrees of freedomthe number of degrees of freedom in a system as used in physics and statistics
- 自由市场 zìyóushìchǎng free market
- 自由式 zìyóushì freestylefreestyle (in sports)
- 自由党 zìyóudǎng Liberal Party
- 自由体操 zìyóutǐcāo floor exercisefloor (gymnastics)
- 自由港 zìyóugǎng free port
- 新闻自由 xīnwénzìyóu press freedomfreedom of the press
- 自由落体 zìyóuluòtǐ free-fallthe motion of a falling body where gravity is the only force acting upon it; free-fall
- 自由职业 zìyóuzhíyè freelanceself-employed; a freelance profession or career
- 自由散漫 zìyóusǎnmàn laxlacking discipline, rigor, or strictness in one's conduct or work attitude
- 自由放任 zìyóufàngrèn laissez-fairelaissez-faire; a policy of non-interference
- 自由民主党 Zìyóu Mínzhǔdǎng Liberal Democratic PartyLiberal Democratic Party (of Japan)
- 自由王国 zìyóuwángguó realm of freedomrealm of freedom (philosophy)
- 自由焓 zìyóuhán Gibbs free energyA thermodynamic potential used to calculate the maximum reversible work that may be performed by a system at constant temperature and pressure.
- 自由爵士乐 zìyóujuéshìyuè free jazzFree jazz (a music genre).
- 自由神像 Zìyóu Shénxiàng Statue of Liberty
- 自由素食主义 zìyóusùshízhǔyì freeganismFreeganism
- 自由行 zìyóuxíng independent travelTravel organized by oneself rather than in a tour group.
- 自由贸易 zìyóumàoyì free trade
- 自由贸易区 zìyóumàoyìqū free trade zoneA designated geographic area or region involving one or more countries where trade barriers such as tariffs and quotas are reduced or eliminated.
- 自由身 zìyóushēn unattached statusa state of being unattached, independent, or not legally or socially bound to a specific person, entity, or status.
- 自由软件 zìyóuruǎnjiàn free softwarefree software (software for which sharing, modification, etc., is permitted)
- 自由软件基金会 Zìyóu Ruǎnjiàn Jījīnhuì Free Software Foundation
- 自由选择权 zìyóuxuǎnzéquán free agency
- 自由降落 zìyóujiàngluò free fall
- 行动自由 xíngdòngzìyóu freedom of action
- 财务自由 cáiwùzìyóu financial independence
- 不自由,毋宁死 bùzìyóu, wúnìngsǐ liberty or deathgive me liberty or give me death
- 财富自由 cáifùzìyóu financial independence
- 媒体自由 méitǐzìyóu media freedomfreedom of the media
- 学术自由 xuéshùzìyóu academic freedom
- 欧洲自由贸易联盟 ōuzhōu Zìyóu Màoyì Liánméng European Free Trade AssociationEuropean Free Trade Association (EFTA)
- 结社自由 jiéshèzìyóu freedom of association(constitutional) freedom of association
- 羟自由基 qiǎngzìyóujī hydroxyl radical
- 自由中国 Zìyóu Zhōngguó Free ChinaCold War era term for the Republic of China on Taiwan, as distinct from "Red China"
- 自由之刃 zìyóuzhīrèn Blade of Freedoma proper noun referring to a specific group, organization, or title, literally meaning the blade of liberty.
- 自由亚洲电台 Zìyóu Yàzhōu Diàntái Radio Free Asia
- 自由企业 zìyóuqǐyè free enterprisea system where private businesses compete with little government control
- 自由刑 zìyóuxíng imprisonment(law) deprivation of freedom
- 自由古巴 Zìyóu Gǔbā Cuba Libre
- 自由城 Zìyóuchéng FreetownFreetown, capital of Sierra Leone (Taiwan usage)
- 自由基清除剂 zìyóujīqīngchújì radical scavengerradical scavenger (chemistry)
- 自由女神像 Zìyóu Nǚshénxiàng Statue of Libertythe Statue of Liberty