This is the 303rd most frequent Icelandic word.
ljós
"Ljós" means "light" in English.
Here, 'ljós' (light) refers to the physical illumination devices or the light emitted by them.
Ljósin í stofunni eru mjög björt.
The lights in the living room are very bright.
In this sentence, 'ljós' (light) is used as an adjective describing the color of her hair.
Hún hefur ljós hár.
She has light hair.
Here, 'ljós' (light) refers to the natural light provided by the sun during the day.