How to Say "detonation" in Spanish
The Spanish word for “detonation” is “explosión” — B1 level. This is a very common word in everyday Spanish.

Examples
La explosión de gas rompió todas las ventanas.
The gas explosion broke all the windows.
Los bomberos acudieron inmediatamente después de escuchar la explosión.
The firefighters arrived immediately after hearing the blast.
El volcán hizo una pequeña explosión de vapor y ceniza.
The volcano made a small explosion of steam and ash.
Gender Rule
Remember that 'explosión' is a feminine noun, so you must use 'la' or 'una' before it, and feminine adjectives after it (e.g., 'una explosión terrible').
Masculine Confusion
Mistake: “El explosión.”
Correction: La explosión. Many nouns ending in -ión are feminine, even though they look strong.
Related Translations
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