cracking vs great

cracking and great both are nouns.

Word	Noun	Adjective	Verb	Adverb
cracking	Yes	Yes	No	No
great	Yes	Yes	No	No

As adjectives, cracking and great are synonyms defined as:

Other synonyms of cracking include bang-up, bully, corking, dandy, groovy, keen, neat, nifty, not bad, old, peachy, slap-up, smashing, swell.

cracking (noun)	great (noun)
the act of cracking something	a person who has achieved distinction and honor in some field
a sudden sharp noise
the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process)

cracking (adjective)	great (adjective)
excellent	excellent
	in an advanced stage of pregnancy
	uppercase
	remarkable or out of the ordinary in degree or magnitude or effect
	of major significance or importance
	relatively large in size or number or extent; larger than others of its kind