impregnate vs soak

impregnate is not a noun while soak is a noun.

Word	Noun	Adjective	Verb	Adverb
impregnate	No	No	Yes	No
soak	Yes	No	Yes	No

As verbs, soak is a hyponym of impregnate; that is, soak is a word with a more specific, narrower meaning than impregnate:

Other hyponyms of impregnate include medicate, alcoholise, alcoholize, imbue, ammonify, thoriate, stuff, charge, drench, imbrue.

impregnate (noun)	soak (noun)
	washing something by allowing it to soak
	the process of becoming softened and saturated as a consequence of being immersed in water (or other liquid)

impregnate (verb)	soak (verb)
make pregnant	fill, soak, or imbue totally
fertilize and cause to grow	cover with liquid; pour liquid onto
infuse or fill completely	heat a metal prior to working it
fill, as with a certain quality	become drunk or drink excessively
	make drunk (with alcoholic drinks)
	beat severely
	submerge in a liquid
	rip off; ask an unreasonable price
	leave as a guarantee in return for money