When something is saturated, it is completely wet or full of something and cannot hold any more.
Saturated can make people think of rain, water, or too much of something.
Examples:
The sponge is saturated with water.
The ground is saturated after the heavy rain.
Her clothes were saturated from playing in the sprinkler.
The paper towel was so saturated, it fell apart!
The air was so saturated with perfume that I could hardly breathe.
The market was saturated with apples, there were apples everywhere!