How to Say "to mass" in Spanish
The Spanish word for “to mass” is “concentrar” — B1 level.
English → SpanishB1
verbB1
grouping troops or resources

Examples
El gobierno decidió concentrar los recursos en la capital.
The government decided to gather/center the resources in the capital.
Tienes que concentrar el jugo hirviéndolo un poco más.
You have to condense the juice by boiling it a bit longer.
La policía concentró a la multitud en la plaza.
The police gathered the crowd in the square.
Moving things vs. Focusing minds
When you are the one moving objects or people to a center, you do NOT use the 'me/te/se' words. Only use them for your own mental focus.
Adding 'se' unnecessarily
Mistake: “El chef se concentró la salsa.”
Correction: El chef concentró la salsa. (The chef didn't focus his mind on the sauce; he physically thickened it).
Related Translations
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