deduction vs step-down

deduction and step-down both are nouns.

Word	Noun	Adjective	Verb	Adverb
deduction	Yes	No	No	No
step-down	Yes	No	No	No

As nouns, step-down is a hypernym of deduction; that is, step-down is a word with a broader meaning than deduction:

Other hypernyms of deduction include decrease, diminution, reduction.

As nouns, step-down is a hypernym of deduction; that is, step-down is a word with a broader meaning than deduction:

Other hypernyms of deduction include decrease, diminution, reduction.

deduction (noun)	step-down (noun)
the act of subtracting (removing a part from the whole)	the act of decreasing or reducing something
the act of reducing the selling price of merchandise
reasoning from the general to the particular (or from cause to effect)
something that is inferred (deduced or entailed or implied)
an amount or percentage deducted
a reduction in the gross amount on which a tax is calculated; reduces taxes by the percentage fixed for the taxpayer's income bracket