air

As nouns the difference between air and dolphin

is that air is the atmospheric substance above the surface of the earth which animals breathe, formerly considered to be a single substance, one of the four basic elements of ancient philosophy and one of the five basic elements of Eastern traditions while dolphin is a carnivorous aquatic mammal inhabiting mostly in the shallower seas of the continental shelves, famed for its intelligence and occasional willingness to approach humans.

As a verb air

is to bring (something) into contact with the air, so as to freshen or dry it.

As nouns the difference between paper and air

is that paper is a sheet material used for writing on or printing on (or as a non-waterproof container), usually made by draining cellulose fibres from a suspension in water while air is the atmospheric substance above the surface of the earth which animals breathe, formerly considered to be a single substance, one of the four basic elements of ancient philosophy and one of the five basic elements of Eastern traditions.

As verbs the difference between paper and air

is that paper is to apply paper to while air is to bring (something) into contact with the air, so as to freshen or dry it.

As an adjective paper

is made of paper.