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"Nalgas" is a form of "nalgas", a plural noun which is often translated as "buttocks". "Trasero" is an adjective which is often translated as "rear". Learn more about the difference between "nalgas" and "trasero" below.
las nalgas(
nahl
-
gahs
)A plural noun indicates that there is more than one person, place, thing, or idea.
1. (anatomy)
a. buttocks
El doctor me dijo que me van a dar varias inyecciones en las nalgas.The doctor told me that they're going to give me several injections in my buttocks.
b. butt (colloquial) (United States)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
Regionalism used in the United States
Hice muchas sentadillas ayer y hoy me duelen las nalgas.I did a lot squats yesterday and now my butt hurts.
c. bum (colloquial) (United Kingdom)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
Regionalism used in the United Kingdom
Necesito ir al gimnasio para tonificar las nalgas antes de ponerme el bikini.I need to go to the gym to tone my buttocks before wearing a bikini.
la nalga
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
2. (anatomy)
b. butt (colloquial)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
Si te vuelvo a cachar viéndome la nalga, te voy a reportar.If I catch you staring at my butt again, I'm going to lodge a complaint.
trasero, el trasero(
trah
-
seh
-
roh
)An adjective is a word that describes a noun (e.g., the big dog).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
2. (colloquial) (buttocks)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
a. backside (colloquial)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
Después de la caída, tenía el trasero cubierto de barro.After the fall, his backside was covered in mud.
c. butt (colloquial) (United States)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
Regionalism used in the United States
¡No puedo creer que ella acaba de darme una palmada en el trasero!I can't believe she just slapped me on the butt!
d. bum (colloquial) (United Kingdom)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
Regionalism used in the United Kingdom
¿Este vestido me hace el trasero grande?Does my bum look big in this dress?
