As adverbs the difference between several and severalfold

is that several is by itself; severally while severalfold is by a factor of a several.

As a determiner several

is separate, distinct; particular.

As a noun several

is (obsolete) an area of land in private ownership (as opposed to common land).

As an adjective severalfold is

by several times.

As a proper noun times

is (newspapers) a common name (often in combination) for a newspaper or periodical, especially , etc.

As an adjective severalfold is

by several times.

As an adverb severalfold is

by a factor of a several.

As a noun factor

is a doer, maker; a person who does things for another person or organization.

As a verb factor

is to find all the factors of (a number or other mathematical object) (the objects that divide it evenly).

As an adjective severalfold is

by several times.

As an adverb severalfold is

by a factor of a several.

As adjectives the difference between luxurious and superdeluxe

is that luxurious is enjoying pleasures of luxury while superdeluxe is being extremely fine in quality or luxurious.

Deluxe is a related term of superdeluxe.

As adjectives the difference between deluxe and superdeluxe

is that deluxe is being very fine in quality or luxurious while superdeluxe is being extremely fine in quality or luxurious.

As an adverb extremely

is to an extreme degree.

As an adjective ultraphysical is

extremely physical.

As adjectives the difference between physical and ultraphysical

is that physical is having to do with the body while ultraphysical is extremely physical.

As a noun physical

is physical examination.

As a proper noun thin

is the fifth earthly branch represented by the.

As an adjective ultrathin is

extremely thin; of utmost thinness.

As adjectives the difference between nutritional and nutriceutical

is that nutritional is of, pertaining to, or providing nutrition while nutriceutical is both nutritionally and pharmaceutically beneficial.

As a noun nutriceutical is

a nutritious pharmaceutical.

Yottahertz is a related term of zettahertz.

As nouns the difference between zettahertz and yottahertz

is that zettahertz is {{SI-unit-np|zetta|hertz|frequency} while yottahertz is a unit of measurement based on one septillion hertz.