addition

As nouns the difference between obsession and addition

is that obsession is a compulsive or irrational preoccupation while addition is addition.

As nouns the difference between addition and replacement

is that addition is addition while replacement is a person or thing that takes the place of another; a substitute.

As nouns the difference between subsidiary and addition

is that subsidiary is a company owned by a parent company or a holding company, also called daughter company or sister company while addition is addition.

As an adjective subsidiary

is auxiliary or supplemental.

As nouns the difference between condition and addition

is that condition is a logical clause or phrase that a conditional statement uses the phrase can either be true or false while addition is addition.

As a verb condition

is to subject to the process of acclimation.

As nouns the difference between addition and clarification

is that addition is addition while clarification is the act of clarifying; the act or process of making clear or transparent by freeing visible impurities]]; particularly, the clearing or [[fine|fining of liquid substances from feculent matter by the separation of the insoluble particles which prevent the liquid from being transparent.

As an adjective irrespective

is heedless, regardless.

As a noun addition is

addition.

As nouns the difference between adult and addition

is that adult is a fully grown human or animal while addition is addition.

As an adjective adult

is fully grown.

As a verb adult

is to (cause to) be or become an.

Addition is a synonym of appurtenance.

As nouns the difference between addition and appurtenance

is that addition is addition while appurtenance is an appendage added to something else.