| zeal | ardor |
| Zealand | Selandia |
| zealot | defensor |
| zealotry | fanatismo |
| zealous | ansioso |
| zealously | celosamente |
| zealousness | ahinco |
| Zeami Motokiyo | Zeami Motokiyo |
| Zeanuri | Ceánuri |
| Zeast | Levadura |
| zeatin | zeatina |
| Zebedee | Zebedeo |
| Zeberio | Ceberio |
| zebra | cebra |
| zebra crossing | paso de cebra |
| zebra finch | diamante mandarín |
| zebra mussel | mejillón cebra |
| zebu | cebú |
| Zebulun | Zabulón |
| Zeca Afonso | José Afonso |
| Zecharia Sitchin | Zecharia Sitchin |
| Zechariah | Zacarías |
| Zechariah ben Jehoiada | Zacarías |
| Zechariah of Israel | Zacarías |
| Zechin | Sequin |
| zee | zeta |
| Zeedonk | Zebrasno |
| Zeeland | Zelanda |
| Zeelandic Flanders | Flandes zelandés |
| Zeeman effect | Efecto Zeeman |
| Zeferino Torreblanca | Zeferino Torreblanca |
| Zegama | Cegama |
| Zehna | Precio |
| Zeiformes | Zeiformes |
| Zeine Ould Zeidane | Zeine Ould Zeidane |
| Zeiss | Carl Zeiss |
| zeitgeist | ánimo de la época |
| Zelaya Department | Zelaya |
| Zelda | Zelda |
| Zelenogorsk | Zelenogorsk |
| Zelig | Zelig |
| zelkova | olmo chino |
| Zelkova carpinifolia | Zelkova carpinifolia |
| Zellweger syndrome | Síndrome de Zellweger |
| Zelus | Zelo |
| Zemfira | Zemfira |
| Zemstvo | Zemstvo |
| Zen | Zen |
| Zenaida Doves | Zenaida |
| Zeneggen | Zeneggen |
| Zener card | Cartas Zener |
| Zener diode | Diodo Zener |
| Zengi | Zengi |
| Zenica | Zenica |
| Zenit | Cenit |
| Zenit News Agency | Cenit |
| Zenit rocket | Cenit |
| zenith | cenit |
| Zenith camera | Cámara de cenit |
| Zenith distance | Distancia cenital |
| Zenithal Hourly Rate | Tasa Horaria Zenital |
| Zenne | Senne |
| Zeno | Zenón |
| Zeno of Citium | Zenón de Citio |
| Zeno of Elea | Zenón de Elea |
| Zeno of Sidon | Zeno of Sidon |
| Zeno of Tarsus | Zenón de Tarso |
| Zeno of Verona | Zenón |
| Zenobia | Zenobia |
| Zenodotus | Zenódoto de Éfeso |
| Zenon | Zenón |
| Zenon Jaskuła | Zenon Jaskuła |
| Zentani Muhammad az-Zentani | Zentani Muhammad az-Zentani |
| Zentralstadion | Zentralstadion |
| Zenwalk Linux | Zenwalk Linux |
| Zenyattà Mondatta | Zenyatta Mondatta |
| Zephaniah | Sofonías |
| zephyr | céfiro |
| Zephyranthes | Zephyranthes |
| Zephyranthes candida | Zephyranthes |
| zeppelin | zepelín |
| Zeptometre | Zeptómetro |
| Zerain | Ceráin |
| Zeratul | Zeratul |
| Zeravshan | Zeravshan |
| Zeren | Procapra gutturosa |
| Zermatt | Zermatt |
| Zermelo set theory | Axiomas de Zermelo-Fraenkel |
| Zernez | Zernez |
| zero | nada |
| Zero energy house | Edificio energía cero |
| zero gravity | ingravidez |
| zero in on | apuntar hacia |
| Zero insertion force | ZIF |
| Zero length launch | ZLL |
| Zero Point Module | ZPM |
| Zero-energy building | Edificio energía cero |
| Zeroconf | Automatic Private Internet Protocol Addressing |
| Zerubbabel | Zorobabel |
| Zerynthia polyxena | Diana |
| Zerynthia rumina | Proserpina |
| zest | entusiasmo |
| zestful | brioso |
| zestfulness | agradar |
| Zestoa | Cestona |
| zesty | fuerte |
| Zeta Aurigae star | Estrellas Zeta Aurigae |
| Zeta Ceti | Zeta Ceti |
| Zeta distribution | Distribución zeta |
| Zeta function | Función zeta |
| Zeta Geminorum | Mekbuda |
| Zeta Orionis | Alnitak |
| Zeta Puppis | Naos |
| Zeta Sagittarii | Askella |
| Zeta Tauri | Zeta Tauri |
| Zeta Ursae Majoris | Mizar |
| Zeta Virginis | Heze |
| Zethos | Zeto |
| zetta- | zetta- |
| Zettabit | Zettabit |
| Zettabyte File System | ZFS |
| Zeulenroda-Triebes | Zeulenroda-Triebes |
| Zeus | Zeus |
| Zeuxine | Zeuxine |
| Zeuxis and Parrhasius | Zeuxis |
| Zeved habat | Zeved habat |
| Zeven | Siete |
| ZFS | ZFS |
| Zgierz | Zgierz |
| Zha cai | Zha cai |
| Zhang Heng | Zhang Heng |
| Zhang Sanfeng | Zhäng Sän Fëng |
| Zhang Xueliang | Zhang Xueliang |
| Zhang Yimou | Zhang Yimou |
| Zhang Ziyi | Zhang Ziyi |
| Zhanna Friske | Zhanna Friske |
| Zhao Ziyang | Zhao Ziyang |
| Zhdanov Doctrine | Doctrina Zhdanov |
| Zhejiang | Zhejiang |
| Zhemgang District | Distrito de Zhemgang |
| Zhenbao Island | Zhenbao |
| Zheng He | Zheng He |
| Zhengzhou | Zhengzhou |
| Zhong Acheng | Zhong Acheng |
| Zhongli Quan | Zhongli Quan |
| Zhongnanhai | Zhongnanhai |
| Zhongshan Park | Parque Zhongshan |
| Zhores Alferov | Zhores Ivanovich Alferov |
| Zhores Ivanovich Alferov | Zhores Ivanovich Alferov |
| Zhou Dynasty | Dinastía Zhou |
| Zhou Enlai | Zhou Enlai |
| Zhou Weihui | Zhou Wei Hui |
| Zhu Chen | Zhu Chen |
| Zhu Rongji | Zhu Rongji |
| Zhu Shijie | Zhu Shijie |
| Zhuang | Zhuang |
| Zhuang language | Idioma chuan |
| Zhuangzi | Zhuangzi |
| Zhuge Liang | Zhuge Liang |
| Zhukov | Zhúkov |
| Zhuyin table | Zhuyin |
| Zhytomyr | Óblast de Zhytomyr |
| Zhytomyr Oblast | Óblast de Zhytomyr |
| Zhùyīn fúhào | Zhuyin |
| Ziad Jaziri | Ziad Jaziri |
| Ziaelas of Bithynia | Cielas de Bitinia |
| Zico | Zico |
| Zidani Most | Zidani Most |
| Zidanta I | Zidanta I |
| Ziegler-Natta catalyst | Catalizador Ziegler-Natta |
| Ziehl-Neelsen stain | Tinción de Ziehl Neelsen |
| Zielebach | Zielebach |
| Zielona Góra | Zielona Góra |
| Zielona Góra Voivodeship | Zielona Góra |
| Zierbena | Ciérvana |
| ZigBee | ZigBee |
| Ziggurat | Zigurat |
| Ziggy Marley | Ziggy Marley |
| Ziggy Marley and the Melody Makers | Ziggy Marley and the Melody Makers |
| Zigoitia | Cigoitia |
