determine vs regulate

determine and regulate both are verbs.

Word	Noun	Adjective	Verb	Adverb
determine	No	No	Yes	No
regulate	No	No	Yes	No

As verbs, regulate is a hyponym of determine; that is, regulate is a word with a more specific, narrower meaning than determine:

determine: reach, make, or come to a decision about something
regulate: bring into conformity with rules or principles or usage; impose regulations

As verbs, determine and regulate are synonyms defined as:

Other synonyms of determine include influence, mold, mould, shape.

determine (verb)	regulate (verb)
reach, make, or come to a decision about something	fix or adjust the time, amount, degree, or rate of
fix conclusively or authoritatively	restrain the emission of (sound, fluid, etc.)
shape or influence; give direction to	shape or influence; give direction to
fix in scope; fix the boundaries of	bring into conformity with rules or principles or usage; impose regulations
establish after a calculation, investigation, experiment, survey, or study
find out, learn, or determine with certainty, usually by making an inquiry or other effort
decide upon or fix definitely
settle conclusively; come to terms