breakage vs crack

breakage and crack both are nouns.

Word	Noun	Adjective	Verb	Adverb
breakage	Yes	No	No	No
crack	Yes	Yes	Yes	No

As nouns, crack is a hyponym of breakage; that is, crack is a word with a more specific, narrower meaning than breakage:

Other hyponyms of breakage include rupture, shattering, smashing, cracking, fracture, chip, chipping, splintering.

breakage (noun)	crack (noun)
the act of breaking something	the act of cracking something
reimbursement for goods damaged while in transit or in use	a usually brief attempt
the quantity broken	a narrow opening
	a purified and potent form of cocaine that is smoked rather than snorted; highly addictive
	a blemish resulting from a break without complete separation of the parts
	witty remark
	a sudden sharp noise
	a long narrow cleft
	a long narrow depression in a surface
	a chance to do something

breakage (adjective)	crack (adjective)
	of the highest quality

breakage (verb)	crack (verb)
	break suddenly and abruptly, as under tension
	become fractured; break or crack on the surface only
	break partially but keep its integrity
	cause to become cracked
	reduce (petroleum) to a simpler compound by cracking
	break into simpler molecules by means of heat
	pass through (a barrier)
	tell spontaneously
	hit forcefully; deal a hard blow, making a cracking noise
	suffer a nervous breakdown
	make a sharp sound
	make a very sharp explosive sound
	gain unauthorized access computers with malicious intentions