WordNet sense 1 (the process of becoming softened and saturated as a consequence of being immersed in water (or other liquid)):

soaking, soakage

WordNet sense 2 (leave as a guarantee in return for money):

hock, pawn

WordNet sense 3 (rip off; ask an unreasonable price):

fleece, hook, overcharge, pluck, plume, rob, surcharge, gazump

WordNet sense 4 (make drunk (with alcoholic drinks)):

inebriate, intoxicate

WordNet sense 5 (become drunk or drink excessively):

souse, hit it up

WordNet sense 6 (fill, soak, or imbue totally):

imbue

WordNet sense 7 (cover with liquid; pour liquid onto):

douse, dowse, drench, sop