This is the 12483rd most frequent Swedish word.
skum
Foam, froth, or weird/eerie depending on context.
Here, 'skum' is used to mean 'foam,' typically seen as bubbles or froth in liquid.
Vattnet var fullt av skum efter tvättmedlet.
The water was full of foam from the detergent.
In this context, 'skum' means 'shady' or 'suspicious,' describing someone's suspicious qualities or behaviors.
Han är verkligen en skum person.
He is really a shady person.
Here, 'skumt' is used to mean 'dim' or 'somewhat dark,' describing the lighting conditions.