soaker vs downpour

soaker and downpour both are nouns.

Word	Noun	Adjective	Verb	Adverb
soaker	Yes	No	No	No
downpour	Yes	No	No	No

As nouns, soaker and downpour are synonyms defined as:

Other synonyms of soaker include cloudburst, deluge, pelter, torrent, waterspout.

soaker (noun)	downpour (noun)
a person who drinks alcohol to excess habitually	a heavy rain
a heavy rain