As an adjective supergroovy

is (informal) extremely groovy.

As a noun null is

zero, nil; the cardinal number before einn.

As nouns the difference between universality and null

is that universality is the property of being universal, common to all members of a class while null is zero, nil; the cardinal number before einn.

As nouns the difference between rumblers and null

is that rumblers is while null is zero, nil; the cardinal number before einn.

As an adjective homovalent

is (chemistry) having the same valency / valence.

As a noun null is

zero, nil; the cardinal number before einn.

As a verb nettled

is (nettle).

As a noun null is

zero, nil; the cardinal number before einn.

As nouns the difference between nonpitcher and null

is that nonpitcher is (baseball) a player who is not a pitcher and therefore is required to bat while null is zero, nil; the cardinal number before einn.

As nouns the difference between scroags and null

is that scroags is (scotland) while null is zero, nil; the cardinal number before einn.

As nouns the difference between hispanophobia and null

is that hispanophobia is fear, hatred of, hostility or discrimination against spaniards, hispanic (spanish) people or culture while null is zero, nil; the cardinal number before einn.

As nouns the difference between greenwax and null

is that greenwax is while null is zero, nil; the cardinal number before einn.

As a letter s

is the letter s with a.

As a noun aqua is

(inorganic compound) the compound water.

As an adjective aqua is

of a greenish-blue colour.