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"Son" is a form of "son", a noun which is often translated as "el hijo". "Soon" is an adverb which is often translated as "pronto". Learn more about the difference between "son" and "soon" below.
son()
A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
1. (relative)
soon()
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
b. dentro de poco
Set the table; dinner will be ready soon.Pon la mesa, la cena estará lista dentro de poco.