cool vs caller

cool and caller both are nouns.

Word	Noun	Adjective	Verb	Adverb
cool	Yes	Yes	Yes	No
caller	Yes	Yes	No	No

cool (noun)	caller (noun)
the quality of being at a refreshingly low temperature	a social or business visitor
great coolness and composure under strain	the person initiating a telephone call
	the person who convenes a meeting
	someone who proclaims or summons in a loud voice
	a person who announces the changes of steps during a dance
	the bettor in a card game who matches the bet and calls for a show of hands
	an investor who buys a call option

cool (adjective)	caller (adjective)
neither warm nor very cold; giving relief from heat	providing coolness
psychologically cool and unenthusiastic; unfriendly or unresponsive or showing dislike	fresh
inducing the impression of coolness; used especially of greens and blues and violets when referring to color
marked by calm self-control (especially in trying circumstances); unemotional
fashionable and attractive at the time; often skilled or socially adept
being satisfactory or in satisfactory condition
used of a quantity or amount (especially of money) for emphasis