determine vs quantify

determine and quantify both are verbs.

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

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

Other hyponyms of determine include name, reset, define.

determine (verb)	quantify (verb)
reach, make, or come to a decision about something	express as a number or measure or quantity
fix conclusively or authoritatively	use as a quantifier
shape or influence; give direction to
fix in scope; fix the boundaries of
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