How to Say "sea of" in Spanish
The Spanish word for “sea of” is “mar” — B1 level.
English → SpanishB1
NounB1
A large, overwhelming amount of something.

Examples
Había un mar de gente en el concierto.
There was a sea of people at the concert.
Después de la clase, tenía un mar de dudas.
After the class, I had a sea of doubts.
El político se enfrentó a un mar de críticas.
The politician faced a sea of criticism.
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