In lang=en terms the difference between spread and explode
is that
spread is to cover (something) with a thin layer of some substance, as of butter while
explode is to blast, to blow up, to burst, to detonate, to go off.
As verbs the difference between spread and explode
is that
spread is to stretch out, open out (a material etc) so that it more fully covers a given area of space while
explode is to destroy with an explosion.
As a noun spread
is the act of spreading or something that has been spread.