As a noun swelling is

the state of being swollen.

As a verb swelling is

.

As an adjective nostalgic

is nostalgic.

As a noun happiness is

the emotion of being happy; joy.

As nouns the difference between potato and mushroom

is that potato is a plant tuber, Solanum tuberosum, eaten as a starchy vegetable, particularly in the Americas and Europe while mushroom is any of the fleshy fruiting bodies of fungi typically produced above ground on soil or on their food sources (such as decaying wood).

As an adjective mushroom is

having characteristics like those of a mushroom, for example in shape or appearance, speed of growth, or texture.

As a verb mushroom is

to grow quickly to a large size.

As nouns the difference between haulage and trucking

is that haulage is the act of hauling while trucking is trading, bartering.

As a verb trucking is

present participle of lang=en.

As verbs the difference between review and vie

is that review is to survey; to look broadly over while vie is to rival; to struggle for superiority; to contend; to compete eagerly so as to gain something.

As a noun review

is a second or subsequent reading of a text or artifact.

As adjectives the difference between uncontrollable and unregenerate

is that uncontrollable is not able to be controlled, contained or governed while unregenerate is which cannot be transformed in mind and spirit.

As a noun women

is (woman).

As an adjective politics is

.

As verbs the difference between revile and blackguard

is that revile is to attack (someone) with abusive language while blackguard is to revile or abuse in scurrilous language.

As nouns the difference between revile and blackguard

is that revile is (obsolete) reproach; reviling while blackguard is (dated) a scoundrel; an unprincipled contemptible person; an untrustworthy person.

In uncountable|lang=en terms the difference between copying and stealing

is that copying is (uncountable) the practice of making one or more copies while stealing is (uncountable) the action of the verb to steal .

As verbs the difference between copying and stealing

is that copying is while stealing is .

As nouns the difference between copying and stealing

is that copying is (countable) an instance of the making of a copy while stealing is (uncountable) the action of the verb to steal .

As nouns the difference between patulin and aflatoxin

is that patulin is (organic compound) a mycotoxin, 2-hydroxy-3,7-dioxabicyclo[430]nona-5,9-dien-8-one , produced by fungi associated with rotting fruit while aflatoxin is (poison) any of a family of mycotoxins, produces by molds of the aspergillus genus, that can be toxic, carcinogenic, mutagenic or teratogenic; typically found as contaminants of animal food or peanuts.