As nouns the difference between familiar and acquaintance

is that familiar is a member of one's family or household while acquaintance is a state of being acquainted, or of having intimate, or more than slight or superficial, knowledge; personal knowledge gained by intercourse short of that of friendship or intimacy.

As an adjective familiar

is known to one.

As verbs the difference between pervade and spreading

is that pervade is to be in every part of; to spread through while spreading is .

As a noun spreading is

the act by which something is spread.

As an adjective prolific

is prolific.

As a noun humor is

mood, temper.

As nouns the difference between waterfall and springs

is that waterfall is a flow of water over the edge of a cliff while springs is plural of lang=en.

As verbs the difference between waterfall and springs

is that waterfall is to fall like a waterfall while springs is third-person singular of spring.

As nouns the difference between general and rough

is that general is general while rough is the unmowed part of a golf course.

As an adjective rough is

having a texture that has much friction not smooth; uneven.

As a verb rough is

to create in an approximate form.

As an adverb rough is

in a rough manner; rudely; roughly.

As verbs the difference between cleared and dismantled

is that cleared is (clear) while dismantled is (dismantle).

As verbs the difference between apply and using

is that apply is to lay or place; to put or adjust (one thing to another);—with to; as, to apply the hand to the breast; to apply medicaments to a diseased part of the body while using is .

As an adjective apply

is .

As a noun using is

use.

As nouns the difference between proposition and tenet

is that proposition is the act of offering (an idea) for consideration while tenet is an opinion, belief, or principle held to be true by someone or especially an organization.

As a verb proposition

is to propose a plan to (someone).

As nouns the difference between shock and collision

is that shock is sudden, heavy impact or shock can be an arrangement of sheaves for drying, a stook while collision is an instance of colliding.

As a verb shock

is to cause to be emotionally shocked or shock can be to collect, or make up, into a shock or shocks; to stook.

As nouns the difference between versatility and functionality

is that versatility is the property of being versatile or having many different abilities; flexibility while functionality is the ability to perform a task or function; that set of functions that something is able or equipped to perform.