saturate
Definitions
To cause a substance to become thoroughly soaked with liquid so that no more can be absorbed.
To fill something or someone completely with something until no more can be added or accepted.
To cause a chemical compound or solution to hold the maximum possible amount of a dissolved substance.
Examples
The heavy rain began to saturate the soil, turning the garden into a muddy mess.
Marketing campaigns often saturate social media platforms to ensure maximum brand visibility.
You should saturate the sponge with water before attempting to clean the spill.