work vs pressure

work and pressure both are nouns.

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

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

work (noun)	pressure (noun)
activity directed toward making or doing something	the act of pressing; the exertion of pressure
the occupation for which you are paid	a force that compels
a product produced or accomplished through the effort or activity or agency of a person or thing	the somatic sensation that results from applying force to an area of skin
a place where work is done	the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit)
the total output of a writer or artist (or a substantial part of it)	the pressure exerted by the atmosphere
applying the mind to learning and understanding a subject (especially by reading)	the state of demanding notice or attention
(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	an oppressive condition of physical or mental or social or economic distress

work (verb)	pressure (verb)
give a workout to	to cause to do through pressure or necessity, by physical, moral or intellectual means
arrive at a certain condition through repeated motion	exert pressure on someone through threats
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