As nouns the difference between soil and vermicompost
is that
soil is (uncountable) a mixture of sand and organic material, used to support plant growth or
soil can be (uncountable|euphemistic) faeces or urine etc when found on clothes or
soil can be a wet or marshy place in which a boar or other such game seeks refuge when hunted while
vermicompost is the product of worm composting; worm castings.
As verbs the difference between soil and vermicompost
is that
soil is to make dirty or
soil can be to feed, as cattle or horses, in the barn or an enclosure, with fresh grass or green food cut for them, instead of sending them out to pasture; hence (such food having the effect of purging them), to purge by feeding on green food while
vermicompost is to employ worms to break down organic waste into soil or humus.