flunk

As verbs the difference between flunk and fluke

is that flunk is of a student, to fail a class; to not pass while fluke is to obtain a successful outcome by pure chance.

As a noun fluke is

a lucky or improbable occurrence, with the implication that the occurrence could not be repeated.

As a proper noun Fluke is

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As verbs the difference between flop and flunk

is that flop is to fall heavily, because lacking energy while flunk is of a student, to fail a class; to not pass.

As a noun flop

is an incident of a certain type of fall; a plopping down.

As an adverb flop

is right, squarely, flat-out.

As verbs the difference between flounder and flunk

is that flounder is to flop around as a fish out of water while flunk is of a student, to fail a class; to not pass.

As a noun flounder

is a European species of flatfish having dull brown colouring with reddish-brown blotches; fluke, European flounder, species: Platichthys flesus.

As verbs the difference between flunk and reprove

is that flunk is of a student, to fail a class; to not pass while reprove is to express disapproval.

As verbs the difference between plough and flunk

is that plough is to use a plough on to prepare for planting while flunk is of a student, to fail a class; to not pass.

As a noun plough

is a device pulled through the ground in order to break it open into furrows for planting.

As a proper noun Plough

is the common name for the brightest seven stars of the constellation Ursa Major.

As verbs the difference between flunk and miss

is that flunk is of a student, to fail a class; to not pass while miss is to fail to hit.

As a noun miss is

a failure to hit.

As verbs the difference between flunk and fair

is that flunk is of a student, to fail a class; to not pass while fair is to smoothen or even a surface (especially a connection or junction on a surface).

As an adjective fair is

beautiful, of a pleasing appearance, with a pure and fresh quality.

As a noun fair is

something which is fair (in various senses of the adjective).

As an adverb fair is

clearly; openly; frankly; civilly; honestly; favorably; auspiciously; agreeably.

As verbs the difference between failed and flunk

is that failed is past tense of fail while flunk is of a student, to fail a class; to not pass.

As verbs the difference between flunk and bomb

is that flunk is of a student, to fail a class; to not pass while bomb is to attack using one or more bombs; to bombard.

As a noun bomb is

an explosive device used or intended as a weapon.

As an adjective bomb is

great, awesome.

As verbs the difference between flunk and disappoint

is that flunk is of a student, to fail a class; to not pass while disappoint is to displease by e.g. underperforming.