reduce vs restrict

reduce and restrict both are verbs.

Word	Noun	Adjective	Verb	Adverb
reduce	No	No	Yes	No
restrict	No	No	Yes	No

As verbs, restrict is a hypernym of reduce; that is, restrict is a word with a broader meaning than reduce:

Other hypernyms of reduce include bound, confine, limit, throttle, trammel.

reduce (verb)	restrict (verb)
take off weight	place limits on (extent or amount or access)
cut down on; make a reduction in	place restrictions on
narrow or limit	place under restrictions; limit access to by law
cook until very little liquid is left	prevent (information) from being circulated or disclosed
to remove oxygen from a compound, or cause to react with hydrogen or form a hydride, or to undergo an increase in the number of electrons
make smaller
reduce in size; reduce physically
make less complex
reduce in scope while retaining essential elements
lessen the strength or flavor of a solution or mixture
be cooked until very little liquid is left
be the essential element
destress and thus weaken a sound when pronouncing it
undergo meiosis
reposition (a broken bone after surgery) back to its normal site
lower in grade or rank or force somebody into an undignified situation
lessen and make more modest
simplify the form of a mathematical equation of expression by substituting one term for another
bring to humbler or weaker state or condition
put down by force or intimidation