caliber vs calibrate

caliber is a noun but calibrate is not a noun.

Word	Noun	Adjective	Verb	Adverb
caliber	Yes	No	No	No
calibrate	No	No	Yes	No

caliber (noun)	calibrate (noun)
a degree or grade of excellence or worth
diameter of a tube or gun barrel

caliber (verb)	calibrate (verb)
	make fine adjustments or divide into marked intervals for optimal measuring
	measure the caliber of
	mark (the scale of a measuring instrument) so that it can be read in the desired units