decrease vs slippage

decrease and slippage both are nouns.

Word	Noun	Adjective	Verb	Adverb
decrease	Yes	No	Yes	No
slippage	Yes	No	No	No

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

decrease: a process of becoming smaller or shorter
slippage: a decrease of transmitted power in a mechanical system caused by slipping

Other hyponyms of decrease include decay, decline, decline, diminution, desensitisation, desensitization, narrowing, wastage.

decrease (noun)	slippage (noun)
the act of decreasing or reducing something	failing to hold or slipping out of place
the amount by which something decreases	a decrease of transmitted power in a mechanical system caused by slipping
a change downward	decline from a standard level of performance or achievement
a process of becoming smaller or shorter

decrease (verb)	slippage (verb)
decrease in size, extent, or range
make become smaller