union

As nouns the difference between whole and union

is that whole is something complete, without any parts missing while union is union (action and result).

As an adjective whole

is entire.

As an adverb whole

is (colloquial) in entirety; entirely; wholly.

As an adjective coherent

is coherent.

As a noun union is

union (action and result).

As nouns the difference between legion and union

is that legion is legion while union is union (action and result).

As nouns the difference between nexus and union

is that nexus is (philosophy|rare|nonstandard) while union is union (action and result).

As a noun union

is union (action and result).

As a verb collaborate is

to work together with others to achieve a common goal.

As a noun union

is union (action and result).

As a verb reunite is

to unite again.

As a noun union

is union (action and result).

As an adjective corporative is

pertaining to a corporation; corporate.