coil vs roll

coil and roll both are nouns.

Word	Noun	Adjective	Verb	Adverb
coil	Yes	No	Yes	No
roll	Yes	No	Yes	No

As nouns, coil and roll are synonyms defined as:

coil and roll: a round shape formed by a series of concentric circles (as formed by leaves or flower petals)

Other synonyms of coil include curl, curlicue, gyre, ringlet, scroll, whorl.

As verbs, roll is a hypernym of coil; that is, roll is a word with a broader meaning than coil:

Other hypernyms of coil include twine, wind, wrap.

coil (noun)	roll (noun)
a structure consisting of something wound in a continuous series of loops	a flight maneuver; aircraft rotates about its longitudinal axis without changing direction or losing altitude
reactor consisting of a spiral of insulated wire that introduces inductance into a circuit	the act of rolling something (as the ball in bowling)
tubing that is wound in a spiral	the act of throwing dice
a contraceptive device placed inside a woman's womb	walking with a swaying gait
a transformer that supplies high voltage to spark plugs in a gasoline engine	anything rolled up in cylindrical form
a round shape formed by a series of concentric circles (as formed by leaves or flower petals)	photographic film rolled up inside a container to protect it from light
	a list of names
	a document that can be rolled up (as for storage)
	a deep prolonged sound (as of thunder or large bells)
	a long heavy sea wave as it advances towards the shore
	rotary motion of an object around its own axis
	the sound of a drum (especially a snare drum) beaten rapidly and continuously
	small rounded bread either plain or sweet
	a roll of currency notes (often taken as the resources of a person or business etc.)
	a round shape formed by a series of concentric circles (as formed by leaves or flower petals)

coil (verb)	roll (verb)
wind around something in coils or loops	execute a roll, in tumbling
make without a potter's wheel	take the shape of a roll or cylinder
to wind or move in a spiral course	show certain properties when being rolled
	boil vigorously
	shape by rolling
	pronounce with a roll, of the phoneme /r/
	arrange or coil around
	begin operating or running
	flatten or spread with a roller
	move by turning over or rotating
	move along on or as if on wheels or a wheeled vehicle
	move about aimlessly or without any destination, often in search of food or employment
	move in a wavy pattern or with a rising and falling motion
	cause to move by turning over or in a circular manner of as if on an axis
	move, rock, or sway from side to side
	emit, produce, or utter with a deep prolonged reverberating sound
	sell something to or obtain something from by energetic and especially underhanded activity
	occur in soft rounded shapes