To cause to become completely penetrated, impregnated, or soaked; to fill fully; to sate.

Filled to repletion; saturated; soaked.

fill to capacity.

to completely fill something so that it cannot hold any more, in reference to absorbing liquids, but also used to mean spreading advertising or ideas around so that people cannot avoid knowing about it Don't leave that pot plant outside or the rain will saturate it. There must be more than enough American coffee shops to saturate the market. saturated (adj), saturation (n)

infuse or fill completely; "Impregnate the cloth with alcohol"

to fill all the voids between soil particles with a liquid.