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"El lavaplatos" is a form of "lavaplatos", a noun which is often translated as "dishwasher". "La cocina" is a form of "cocina", a noun which is often translated as "kitchen". Learn more about the difference between "el lavaplatos" and "la cocina" below.
el lavaplatos(
lah
-
bah
-
plah
-
tohs
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
a. dishwasher
Mañana viene el técnico a arreglar el lavaplatos.The repairman is coming tomorrow to repair the dishwasher.
Cuando acabe el lavaplatos, vacíalo.When the dishwasher is done, unload it.
This means that the noun can be masculine or feminine, depending on the gender of the noun it refers to (e.g., el doctor, la doctora).
3. (profession)
a. dishwasher
Durante las vacaciones de verano, trabajaba como lavaplatos en un restaurante.During summer vacation, I worked as a dishwasher in a restaurant.
la cocina(
koh
-
see
-
nah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
b. range
Se puede controlar la temperatura mejor con una cocina de gas.You can control the temperature better on a gas range.
c. cooker (United Kingdom)
Regionalism used in the United Kingdom
En esta cocina se pueden acomodar cuatro ollas grandes a la vez.You can get four big pots on this cooker at the same time.
3. (activity)
a. cooking
Me resulta difícil hacer dieta porque me encanta la cocina.I find dieting very difficult, because I love cooking.
b. cuisine
La pareja tomó un curso de alta cocina francesa.The couple did a French haute cuisine course.
c. cookery
Quiero un libro de cocina española para Navidad.I want a Spanish cookery book for Christmas.