decrement vs slippage

decrement and slippage both are nouns.

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

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

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

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

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