As nouns the difference between importance and importantness

is that importance is the quality or condition of being important or worthy of note while importantness is the quality of being important; importance.

As nouns the difference between cassette and covertape

is that cassette is a small flat case containing magnetic tape on two reels, used to record and play back audio and video material while covertape is (dated) a cassette tape offered as a covermount, containing music or video games.

As nouns the difference between tape and covertape

is that tape is stone while covertape is (dated) a cassette tape offered as a covermount, containing music or video games.

As nouns the difference between covermount and covertape

is that covermount is a freebie, such as a compact disc, mounted on the cover of a magazine while covertape is (dated) a cassette tape offered as a covermount, containing music or video games.

As nouns the difference between music and covertape

is that music is musician while covertape is (dated) a cassette tape offered as a covermount, containing music or video games.

As nouns the difference between covermount and coverdisk

is that covermount is a freebie, such as a compact disc, mounted on the cover of a magazine while coverdisk is (dated) a floppy disk offered as a covermount, containing video games or other software.

As nouns the difference between software and coverdisk

is that software is software while coverdisk is (dated) a floppy disk offered as a covermount, containing video games or other software.

As an adjective quadratic

is square-shaped.

As a noun quadratic

is a quadratic polynomial, function or equation.

As an adverb quadratically is

in a quadratic way.

Picotitre is a related term of microtitre.

As nouns the difference between picotitre and microtitre

is that picotitre is while microtitre is .

As an adjective alphabetic

is of or relating to an alphabet, especially the characters a to z, both uppercase and lowercase.

As a proper noun tifinagh is

an alphabetic script used by some berber peoples, notably the tuareg, to write their language.