As an adjective photoacoustic

is of, or relating to photoacoustics.

As an adverb photoacoustically is

in a photoacoustic way.

As a proper noun sound

is the strait that separates zealand (an island of denmark) from scania (part of sweden); also sometimes called by the danish name,.

As an adjective otoacoustic is

of or pertaining to sounds generated by the inner ear.

As a noun fiction

is literary type using invented or imaginative writing, instead of real facts, usually written as prose.

As an adjective fictious is

(obsolete) fictitious.

As proper nouns the difference between dagestan and archi

is that dagestan is a Russian republic in the Caucasus region while Archi is a Northeast Caucasian ethnic group who live in eight villages in Southern Dagestan, Russia.

As proper nouns the difference between russia and archi

is that russia is a country in Eastern Europe and Northern Asia. The Country extends from the Gulf of Finland to the Pacific Ocean, and was part of the USSR from 1922 to 1991. Co-official name - Russian Federation, formerly the Russian Soviet Federative Socialist Republic (RSFSR), Capital and largest city MoscowArchi is a Northeast Caucasian ethnic group who live in eight villages in Southern Dagestan, Russia.

As a verb unscrew

is to loosen a screw or thing by turning it.

As an adjective unscrewable is

that can be unscrewed.

As a noun screw

is a device that has a helical function.

As a verb screw

is to connect or assemble pieces using a screw.

As an adjective screwable is

(not comparable) that can be screwed (fastened mechanically).

Rootable is a synonym of screwable.

As adjectives the difference between rootable and screwable

is that rootable is that can be rooted while screwable is (not comparable) that can be screwed (fastened mechanically).

As nouns the difference between backtrack and backtracker

is that backtrack is the act of while backtracker is one who, or that which, backtracks.

As a verb backtrack

is to retrace one's steps.

As nouns the difference between leather and leatherwork

is that leather is a tough material produced from the skin of animals, by tanning or similar process, used e.g. for clothing while leatherwork is the making of articles from leather.

As an adjective leather

is made of leather.

As a verb leather

is to cover with leather.