WordNet sense 1 (piece of solid food for dipping in a liquid):

sops

WordNet sense 2 (be or become thoroughly soaked or saturated with a liquid):

soak through

WordNet sense 3 (a prescribed procedure to be followed routinely):

standing operating procedure, standard operating procedure, standard procedure

WordNet sense 4 (cover with liquid; pour liquid onto):

douse, dowse, drench, soak, souse