This is the 6403rd most frequent Catalan word.
oz
The Catalan word "oz" does not exist.
Here, 'oz' refers to 'ozone', describing a gas required for life.
El oz de l’aire és essencial per a la vida.
Ozone in the air is essential for life.
In this context, 'Oz' is used as a proper noun referring to the name of a fictional place or city.
El rei va observar la ciutat d'Oz des del seu castell.
The king observed the city of Oz from his castle.
'Oz' refers to 'ozone' again, specifying its scientific occurrence in the ozone layer.