In label|en|transitive terms the difference between expand and accelerate
is that
expand is (
label) to express (something) at length and/or in detail while
accelerate is (
label) to hasten, as the occurrence of an event.
In label|en|intransitive terms the difference between expand and accelerate
is that
expand is (
label) to feel generous or optimistic while
accelerate is (
label) grow; increase.
As verbs the difference between expand and accelerate
is that
expand is (
label) to change (something) from a smaller form and/or size to a larger one while
accelerate is (
label) to cause to move faster; to quicken the motion of; to add to the speed of.
As an adjective accelerate is
(rare) accelerated; quickened; hastened; hurried.