As adjectives the difference between vigorous and juvenile

is that vigorous is physically strong and active while juvenile is youthful; young.

As an adjective satisfactory

is done to satisfaction; adequate or sufficient.

As a proper noun small is

.

As nouns the difference between bill and been

is that bill is car (motorcar, automobile) while been is leg or been can be bone as a material.

As nouns the difference between leading and behind

is that leading is an act by which one is led or guided or leading can be (typography) vertical space added between lines; line spacing while behind is the rear, back-end.

As a verb leading

is .

As an adjective leading

is providing guidance or direction.

As a preposition behind is

at the back of.

As an adverb behind is

at the back part; in the rear.

As verbs the difference between vied and rivalled

is that vied is (vie) while rivalled is (british) (rival).

As a noun exhibition

is an instance of exhibiting, or something exhibited.

As an adjective exposed is

vulnerable, susceptible.

As a verb exposed is

(expose).

As a noun stress

is stress (emotional pressure).

As an adjective happy is

experiencing the effect of favourable fortune; having the feeling arising from the consciousness of well-being or of enjoyment; enjoying good of any kind, as peace, tranquillity, comfort; contented; joyous.

As verbs the difference between produced and confirmed

is that produced is (produce) while confirmed is (confirm).

As an adjective confirmed is

having a settled habit; inveterate or habitual.

As verbs the difference between produce and confirm

is that produce is to yield, make or manufacture; to generate while confirm is to strengthen; to make firm or resolute.

As a noun produce

is items produced.

As nouns the difference between furor and craze

is that furor is a general uproar or commotion while craze is craziness; insanity.

As a verb craze is

to weaken; to impair; to render decrepit.