As nouns the difference between unities and units

is that unities is plural of lang=en while units is plural of lang=en.

As nouns the difference between univalent and cotland

is that univalent is any univalent chromosome while cotland is the land attached to a cottage, or held by a cottager or cotter.

As an adjective univalent

is having a valence of 1, or having only one valence.

Widespread is a synonym of universal.

As adjectives the difference between universal and widespread

is that universal is of or pertaining to the universe while widespread is affecting a large area (e.g. the entire land or body); broad in extent; widely diffused.

As a noun universal

is a characteristic or property that particular things have in common.

As nouns the difference between universe and ecosystem

is that universe is the sum of everything that exists in the cosmos, including time and space itself; same as the Universe while ecosystem is a system formed by an ecological community and its environment that functions as a unit.

As a proper noun Universe

is the sum of everything that exists in the cosmos, including time and space itself.

As a proper noun universe

is the sum of everything that exists in the cosmos, including time and space itself.

As a noun universality is

the property of being universal, common to all members of a class.

As an adjective unjust

is not fair, just or right.

As a noun muse is

a source of inspiration.

As a verb muse is

to become lost in thought, to ponder.

As adjectives the difference between unjustifiable and causeless

is that unjustifiable is that cannot be justified, excused or pardoned while causeless is having no obvious cause; fortuitous or inexplicable.

As adjectives the difference between unjustifiable and unfounded

is that unjustifiable is that cannot be justified, excused or pardoned while unfounded is having no strong foundation; not based on solid reasons or facts.

As an adjective unlicensed

is not licensed; not officially authorized.

As a letter h is

the eighth letter of the.

As a symbol h is

(label) symbol for hydrogen.

As an adjective unlike

is not like; dissimilar; diverse; having no resemblance.

As a preposition unlike

is differently from; not in a like or similar manner.

As a verb unlike

is to dislike.

As an adverb instead is

in the place of something (usually mentioned earlier); as a substitute or alternative.