As nouns the difference between pizza and couch

is that pizza is pizza while couch is couch.

As an adjective spontaneous is

self-generated; happening without any apparent external cause.

Tropospheree is likely misspelled.

Tropospheree has no English definition.

As a noun exosphere is

the uppermost layer of a planet's atmosphere.

As adjectives the difference between radical and excessive

is that radical is favoring fundamental change, or change at the root cause of a matter while excessive is exceeding the usual bounds of something; extravagant; immoderate.

As a noun radical

is a member of the most progressive wing of the liberal party; someone favouring social reform (but generally stopping short of socialism).

As nouns the difference between thought and insight

is that thought is form created in the mind, rather than the forms perceived through the five senses; an instance of thinking while insight is a sight or view of the interior of anything; a deep inspection or view; introspection; frequently used with into.

As a verb thought

is past tense of think.

As an adjective modifiable

is capable of being modified; subject to modification.

As a verb modifying is

altering.

As nouns the difference between thoughts and insight

is that thoughts is plural of lang=en while insight is a sight or view of the interior of anything; a deep inspection or view; introspection; frequently used with into.

As nouns the difference between polyclinic and hospitals

is that polyclinic is a clinic in which diseases of many sorts are treated; especially, an institution in which clinical instruction is given in all kinds of disease while hospitals is .

Coldwar is likely misspelled.

Coldwar has no English definition.

As an abbreviation WWII is

world War II.

As a noun insulators is

.