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"Navidad" is a proper noun which is often translated as "Christmas", and "Nochevieja" is a proper noun which is often translated as "New Year's Eve". Learn more about the difference between "Navidad" and "Nochevieja" below.
la Navidad()
A proper noun refers to the name of a person, place, or thing.
las Navidades
A plural noun indicates that there is more than one person, place, thing, or idea.
a. Christmas
Vamos a pasar las Navidades con mis suegros.We're going to spend Christmas with my in-laws.
la Nochevieja()
A proper noun refers to the name of a person, place, or thing.
1. (holiday)
a. New Year's Eve
¿Compraste el champán y las uvas para Nochevieja?Have you bought the champagne and grapes for New Year's Eve?
Siempre miramos los fuegos artificiales en la Nochevieja.We always watch the fireworks on New Year's Eve.