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"Twice" is an adverb which is often translated as "dos veces", and "one time" is an adverb which is often translated as "una vez". Learn more about the difference between "twice" and "one time" below.
twice(
tways
)An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
1. (two times)
a. dos veces
He had to go to the store twice, because he forgot the milk the first time.Tuvo que ir a la tienda dos veces, porque se le olvidó la leche la primera vez.
one time(
wuhn
taym
)