service vs work

service and work both are nouns.

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

As nouns, work is a hypernym of service; that is, work is a word with a broader meaning than service:

Other hypernyms of service include employment.

As nouns, work is a hypernym of service; that is, work is a word with a broader meaning than service:

As verbs, work is a hypernym of service; that is, work is a word with a broader meaning than service:

Other hypernyms of service include function, go, operate, run.

service (noun)	work (noun)
an act of help or assistance; something (such as a tool, software or system) used to render said help or assistance	activity directed toward making or doing something
the act of public worship following prescribed rules	the occupation for which you are paid
(sports) a stroke that puts the ball in play	a product produced or accomplished through the effort or activity or agency of a person or thing
the act of mating by male animals	a place where work is done
the act of delivering a writ or summons upon someone	the total output of a writer or artist (or a substantial part of it)
periodic maintenance on a car or machine	applying the mind to learning and understanding a subject (especially by reading)
the performance of duties by a waiter or servant	(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
employment in or work for another
work done by one person or group that benefits another
(law) the acts performed by an English feudal tenant for the benefit of his lord which formed the consideration for the property granted to him
tableware consisting of a complete set of articles (silver or dishware) for use at table
a means of serving
a force that is a branch of the armed forces
a company or agency that performs a public service; subject to government regulation

service (verb)	work (verb)
make fit for use	give a workout to
mate with	arrive at a certain condition through repeated motion
be used by; as of a utility	go sour or spoil
	cause to undergo fermentation
	find the solution to (a problem or question) or understand the meaning of
	use or manipulate to one's advantage
	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