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

Examples
La muerte de su perro lo sumió en una gran tristeza.
The death of his dog plunged him into a great sadness.
Las deudas pueden sumir a una empresa en la quiebra.
Debts can sink a company into bankruptcy.
El escándalo sumió al país en una crisis política.
The scandal plunged the country into a political crisis.
Using the word 'en'
When you use 'sumir' to say someone is being plunged into a state, you must follow it with the word 'en' (in/into).
Adding 'se' for personal feelings
If you want to say someone is sinking into their own thoughts or feelings, use the reflexive form 'sumirse' (adding 'se' to the end).
Confusing sumir and sumar
Mistake: “Yo sumo a mi amigo en la tristeza.”
Correction: Yo sumo (from sumar) means 'I add'. Use 'Yo sumí' or 'Yo sumerjo' if you mean sinking or plunging.
Related Translations
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