How to Say "participant" in Spanish
The Spanish word for “participant” is “actor” — B2 level.

Examples
Los actores sociales están pidiendo una reforma educativa.
The social agents (or stakeholders) are calling for educational reform.
El gobierno es el principal actor en esta negociación internacional.
The government is the main participant in this international negotiation.
Hay varios actores económicos que influyen en el precio del petróleo.
There are several economic factors (or agents) that influence the price of oil.
Formal Contexts
This meaning is often found in news articles, academic papers, and business reports. It emphasizes someone who performs a function or holds power.
Literal Translation
Mistake: “Thinking 'actor' always means 'performer' when reading formal texts.”
Correction: In formal Spanish, if the context is economics or politics, 'actor' usually means 'key player' or 'force that makes things happen'.
Related Translations
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