How to Say "oxygen" in Spanish
The Spanish word for “oxygen” is “oxígeno” — A1 level. This is a very common word in everyday Spanish.
Examples
Necesitamos oxígeno para poder respirar y vivir.
We need oxygen to be able to breathe and live.
El buceador llevaba un tanque lleno de oxígeno comprimido.
The diver was carrying a tank full of compressed oxygen.
Después de tanto encierro, salir al campo fue como recibir una dosis de oxígeno.
After being shut in for so long, going out to the countryside was like receiving a dose of oxygen (a breath of fresh air).
Always Masculine
Even though many Spanish words ending in '-a' are feminine, words ending in '-o' are almost always masculine, like 'el oxígeno'.
Elements are Masculine
All chemical elements (like hydrogen, gold, or oxygen) are treated as masculine nouns in Spanish.
Confusing Oxígeno and Aire
Mistake: “Usando 'oxígeno' para referirse a la atmósfera normal (e.g., 'El oxígeno está fresco').”
Correction: Use 'aire' when talking about the general atmosphere or weather ('El aire está fresco'). 'Oxígeno' refers specifically to the chemical gas.
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