| Watkins Glen International | Watkins Glen International |
| Watling Street | Watling Street |
| watt | vatio |
| Watt of Sussex | Vatio |
| Watt-hour | Kilovatio-hora |
| wattage | potencia en vatios |
| Watten | Vatio |
| Wattenwil | Wattenwil |
| Wattled Curassow | Crax globulosa |
| Wattled Guan | Aburria aburri |
| Wattled Jacana | Jacana jacana |
| wattmeter | vatímetro |
| Watto | Watto |
| watts | vatio |
| Watts Bar Nuclear Generating Station | Planta de energía nuclear Watts Bar |
| WAV | WAV |
| wave | señal |
| wave band | banda de ondas |
| Wave energy | Energía undimotriz |
| Wave function collapse | Colapso de la función de onda |
| Wave motion | Movimiento ondulatorio |
| Wave packet | Paquete de ondas |
| Wave period | Período de oscilación |
| Wave propagation | Propagación de ondas |
| wave-particle duality | dualidad onda corpúsculo |
| Waved Albatross | Phoebastria irrorata |
| Waveform analysis | Análisis de formas de onda |
| wavefunction | función de onda |
| Waveguides | Guía de ondas |
| wavelength | longitud de onda |
| Wavelength-division multiplexing | DWDM |
| Wavelet compression | Wavelet |
| waver | dudar |
| waver between two things | titubear entre dos cosas |
| wavering | vacilante |
| waveringly | indeciso |
| waves | ondular |
| waving | agitado |
| wavy | picado |
| wax | crecer |
| wax candle | vela |
| wax paper | papel encerado |
| waxed paper | papel encerado |
| waxing | creciente |
| waxwing | ampelis |
| waxy | ceroso |
| way | dirección |
| way back | hace mucho tiempo |
| way back then | en ese entonces |
| way in | entrada |
| way of life | estilo de vida |
| way of talking | manera de hablar |
| Way of the Cross | vía crucis |
| Way of the Dragon | Way of the Dragon |
| way out | salida |
| way there | camino de ida |
| way to go | ¡bien hecho! |
| Way to proceed | Business Process Management |
| waybill | hoja de ruta |
| wayfarer | caminante |
| waylay | acechar |
| Waylon Smithers | Waylon Smithers |
| Wayne County | Condado de Wayne |
| Wayne Dyer | Wayne Dyer |
| Wayne Gretzky | Wayne Gretzky |
| Wayne Rooney | Wayne Rooney |
| Wayne’s World | El mundo de Wayne |
| Wayraperú | WayraPerú |
| ways | costumbre |
| Wayuu | Wayúu |
| Wayuu language | Idioma wayúu |
| wayward | caprichoso |
| waywardness | capricho |
| Waziristan | Waziristán |
| Wałbrzych | Wałbrzych |
| Wbsite | Sitio web |
| WC | Inodoro |
| WC star | Estrella WC |
| WCN star | Estrella WCN |
| WDR Symphony Orchestra Cologne | Orquesta Sinfónica de la WDR de Colonia |
| we | nosotros |
| We Are the Champions | We Are the Champions |
| We Are the World | We are the world |
| We Love Katamari | We ♥ Katamari |
| We Were Soldiers | Fuimos soldados |
| weak | flojo |
| Weak acid | Ácido débil |
| Weak and strong atheism | Ateísmo fuerte |
| Weak atheism | Ateísmo débil |
| weak force | débil de fuerza |
| Weak hypercharge | Hipercarga débil |
| Weak interaction | Interacción débil |
| Weak key | Clave débil |
| weak nuclear interaction | interacción nuclear débil |
| weak spot | obstáculo |
| weak-headed | mentecato |
| weak-kneed | sin carácter |
| weak-minded | mentecato |
| weaken | disminuir |
| weakening | debilitado |
| weakling | pusilánime |
| weakly | débilmente |
| weakness | inclinación |
| weaknesses | debilitar |
| weal | roncha |
| wealth | riqueza |
