crunch vs compaction

crunch and compaction both are nouns.

Word	Noun	Adjective	Verb	Adverb
crunch	Yes	No	Yes	No
compaction	Yes	No	No	No

As nouns, crunch and compaction are synonyms defined as:

Other synonyms of crunch include crush.

crunch (noun)	compaction (noun)
the act of crushing	the act of crushing
the sound of something crunching	an increase in the density of something
a critical situation that arises because of a shortage (as a shortage of time or money or resources)

crunch (verb)	compaction (verb)
reduce to small pieces or particles by pounding or abrading
make a crushing noise
crush with the teeth, making a grinding sound
press or grind with a crushing noise