In transitive terms the difference between accelerate and exacerbate

is that accelerate is to hasten, as the occurrence of an event while exacerbate is to make worse (pain, anger, etc.); aggravate.

As an adjective accelerate

is accelerated; quickened; hastened; hurried.

In intransitive terms the difference between adhere and resist

is that adhere is to be consistent or coherent; to be in accordance; to agree while resist is to oppose.

As a noun resist is

a protective coating or covering.

As adverbs the difference between apprehensively and furiously

is that apprehensively is in an apprehensive manner; with apprehension while furiously is in a furious manner; angrily.

As nouns the difference between chunks and groups

is that chunks is plural of lang=en while groups is plural of lang=en.

As verbs the difference between chunks and groups

is that chunks is third-person singular of chunk while groups is third-person singular of group.

As verbs the difference between engrossed and active

is that engrossed is (engross) while active is .

As an adjective engrossed

is preoccupied with something to the exclusion of everything else or engrossed can be (of a document) finalized, written in large letters.

As nouns the difference between presenter and instructor

is that presenter is someone who presents a broadcast programme; a compere or master of ceremonies while instructor is one who instructs; a teacher.

As nouns the difference between course and sports

is that course is a sequence of events while sports is plural of lang=en.

As verbs the difference between course and sports

is that course is to run or flow (especially of liquids and more particularly blood) while sports is third-person singular of sport.

As an adverb course

is alternative form of lang=en.

As nouns the difference between practice and expertise

is that practice is repetition of an activity to improve skill while expertise is great skill or knowledge in a particular field or hobby.

As a verb practice

is to repeat (an activity) as a way of improving one's skill in that activity.

As verbs the difference between slump and plum

is that slump is to collapse heavily or helplessly while plum is to plumb.

As nouns the difference between slump and plum

is that slump is a heavy or helpless collapse; a slouching or drooping posture; a period of poor activity or performance, especially an extended period while plum is the edible, fleshy stone fruit of Prunus domestica, often of a dark red or purple colour.

As an adjective plum is

of a dark bluish-red colour.

As an adverb plum is

completely; utterly.

As nouns the difference between tumble and plum

is that tumble is a fall while plum is feather.

As a verb tumble

is (lb) to fall end over end.