As nouns the difference between feedback and retroaction

is that feedback is critical assessment on information produced while retroaction is any action that has an influence due to a past event.

As a verb feedback

is to generate the high-frequency sound by allowing a speaker to cause vibration of the sound generator of a musical instrument connected by an amplifier to the speaker.

As nouns the difference between cellulose and pectin

is that cellulose is a complex carbohydrate that forms the main constituent of the cell wall in most plants and is important in the manufacture of numerous products, such as paper, textiles, pharmaceuticals, and explosives while pectin is a polysaccharide extracted from the cell walls of plants, especially of fruits; under acidic conditions it forms a gel. It is often used in processed foods, especially jellies and jams where it causes thickening (setting).

As an adjective cellulose

is consisting of, or containing, cells.

As verbs the difference between neighbor and adjoin

is that neighbor is standard spelling of from=American spelling|lang=en while adjoin is to be in contact or connection with.

As a noun neighbor

is standard spelling of from=American spelling|lang=en.

As nouns the difference between submissive and pants

is that submissive is one who submits while pants is an outer garment worn by men and women that covers the body from the waist downwards, covering each leg separately, usually as far as the ankles; trousers.

As adjectives the difference between submissive and pants

is that submissive is meekly obedient or passive while pants is of inferior quality, rubbish.

As a verb pants is

to pull someone’s pants down; to forcibly remove someone’s pants.

As an adjective muddy

is covered with or full of mud or wet soil.

As a verb muddy

is to get mud on (something).

As an abbreviation diet is

(microbiology).

As nouns the difference between chars and characters

is that chars is plural of lang=en while characters is plural of lang=en.

As verbs the difference between suppose and resume

is that suppose is while resume is .

As adjectives the difference between lunar and lunatic

is that lunar is of, or pertaining to, the moon; moonly while lunatic is crazed, mad, insane, demented.

As nouns the difference between lunar and lunatic

is that lunar is (astronomy) a lunar distance while lunatic is an insane person.

As a verb renovate

is to renew; to revamp something to make it look new again.

As a noun maintenance is

actions performed to keep some machine or system functioning or in service.

As verbs the difference between gain and archive

is that gain is to acquire possession of what one did not have before while archive is .

As a preposition gain

is (obsolete) against.

As an adjective gain

is (obsolete) straight, direct; near; short.

As an adverb gain

is (obsolete) straightly; quickly; by the nearest way or means.

As a noun gain

is the act of gaining or gain can be (architecture) a square or bevelled notch cut out of a girder, binding joist, or other timber which supports a floor beam, so as to receive the end of the floor beam.