deduction vs reduction

deduction and reduction both are nouns.

Word	Noun	Adjective	Verb	Adverb
deduction	Yes	No	No	No
reduction	Yes	No	No	No

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

Other hypernyms of deduction include decrease, diminution, step-down.

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

Other hypernyms of deduction include decrease, diminution, step-down.

deduction (noun)	reduction (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	the act of reducing complexity
reasoning from the general to the particular (or from cause to effect)	any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen); always occurs accompanied by oxidation of the reducing agent
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