work vs double

work and double both are nouns.

Word	Noun	Adjective	Verb	Adverb
work	Yes	No	Yes	No
double	Yes	Yes	Yes	Yes

As verbs, double is a hyponym of work; that is, double is a word with a more specific, narrower meaning than work:

Other hyponyms of work include roll, run, cut, serve, service.

work (noun)	double (noun)
activity directed toward making or doing something	a base hit on which the batter stops safely at second base
the occupation for which you are paid	raising the stakes in a card game by a factor of 2
a product produced or accomplished through the effort or activity or agency of a person or thing	a quantity that is twice as great as another
a place where work is done	someone who closely resembles a famous person (especially an actor)
the total output of a writer or artist (or a substantial part of it)	a stand-in for movie stars to perform dangerous stunts
applying the mind to learning and understanding a subject (especially by reading)
(physics) a manifestation of energy; the transfer of energy from one physical system to another expressed as the product of a force and the distance through which it moves a body in the direction of that force

work (adjective)	double (adjective)
	used of homologous chromosomes associated in pairs in synapsis
	used of flowers having more than the usual number of petals in crowded or overlapping arrangements
	having two meanings with intent to deceive
	large enough for two
	twice as great or many
	consisting of or involving two parts or components usually in pairs
	having more than one decidedly dissimilar aspects or qualities

work (verb)	double (verb)
give a workout to	increase twofold
arrive at a certain condition through repeated motion	hit a two-base hit
go sour or spoil	do double duty; serve two purposes or have two functions
cause to undergo fermentation	make or do or perform again
find the solution to (a problem or question) or understand the meaning of	bend over or curl up, usually with laughter or pain
use or manipulate to one's advantage	make a demand for (a card or suit)
to mix into a homogeneous mass
perform as expected when applied
move into or onto
shape, form, or improve a material
cause to happen or to occur as a consequence
prepare for crops
make something, usually for a specific function
gratify and charm, usually in order to influence
proceed along a path
move in an agitated manner
provoke or excite
be employed
cause to work
exert oneself by doing mental or physical work for a purpose or out of necessity; work
have an effect or outcome; often the one desired or expected
operate in a certain place, area, or specialty
proceed towards a goal or along a path or through an activity
have and exert influence or effect
operate in or through
cause to operate or function
behave in a certain way when handled