As a proper noun unity is

.

As a noun ingenuity

is the ability to solve difficult problems, often in original, clever, and inventive ways.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As nouns the difference between cowardice and patsy

is that cowardice is lack of courage while patsy is (informal|derogatory) a person who is taken advantage of, especially by being cheated or blamed for something.

As verbs the difference between discretize and quantize

is that discretize is (transitive|mathematics|computing) to convert a continuous space into an equivalent discrete space for the purposes of easier calculation while quantize is (physics) to limit the number of possible values of a quantity, or states of a system, by applying the rules of quantum mechanics.

As nouns the difference between system and fundamental

is that system is system while fundamental is a leading or primary principle, rule, law, or article, which serves as the groundwork of a system; essential part, as, the fundamentals of linear algebra.

As an adjective fundamental is

pertaining to the foundation or basis; serving for the foundation hence: essential, as an element, principle, or law; important; original; elementary.

As nouns the difference between systems and fundamentals

is that systems is while fundamentals is .

As an adjective dimwitted

is .

As a noun idiot is

(slang|derogatory) a proponent of intelligent design.

As nouns the difference between volunteer and work

is that volunteer is one who enters into, or offers for, any service of his/her own free will, especially when done without pay while work is employment .

As verbs the difference between volunteer and work

is that volunteer is (label) to enlist oneself as a volunteer while work is to do a specific task by employing physical or mental powers.

As nouns the difference between rainstorm and tornado

is that rainstorm is a storm characterized by substantial, heavy rainfall while tornado is tornado.