| withstand use | durare |
| withy | vimine |
| Witiges | Vitige |
| witness | assistere a |
| Witness for the defence | Testimonio a favore |
| witness for the defense | teste a discarico |
| witness for the prosecution | teste a carico |
| witness stand | banco dei testimoni |
| witness to | testimoniare di |
| Witnessed test | Acquistar |
| witnesses | testimoniare |
| witnessing | testimoniante |
| Witold Gombrowicz | Witold Gombrowicz |
| Witold Lutosławski | Witold Lutosławski |
| WiTricity | Witricity |
| wits | giudizio |
| Witta of Büraburg | Witta |
| witted | sensato |
| Wittelsbach | Wittelsbach |
| Wittelshofen | Wittelshofen |
| Witten | Witten |
| Wittenbach | Wittenbach |
| Wittenberg | Wittenberg |
| Wittenberge | Wittenberge |
| Witteric | Viterico |
| Witterswil | Witterswil |
| Wittgenstein | Wittgenstein |
| Wittibreut | Wittibreut |
| witticism | spiritosaggine |
| Wittighausen | Wittighausen |
| wittily | faceto |
| wittiness | spiritosaggine |
| Wittinsburg | Wittinsburg |
| Wittislingen | Wittislingen |
| Wittiza | Witiza |
| Wittlingen | Wittlingen |
| wittol | becco |
| witty | fine |
| witty remark | spiritosaggine |
| witty saying | epigramma |
| Witzenhausen | Witzenhausen |
| Witzmannsberg | Witzmannsberg |
| wizard | mago |
| Wizard and Glass | La sfera del buio |
| Wizard of Wor | Wizard of Wor |
| Wizarding world | Mondo magico di Harry Potter |
| wizardry | magia |
| Wizards of the Coast | Wizards of the Coast |
| wizen | avvizzito |
| wizened | avvizzito |
| WIZO | WIZO |
| Wizz Air | Wizz Air |
| WKB approximation | Approssimazione WKB |
| Wladimir Köppen | Vladimir Petrovič Köppen |
| Wladislaw II of Poland | Vladislao di Boemia |
| Wmii | Wmii |
| Wneg | Weneg |
| woad | guado |
| wobble | traballare |
| wobbliness | incertezza |
| wobbly | malfermo |
