save vs economise

save is a noun but economise is not a noun.

Word	Noun	Adjective	Verb	Adverb
save	Yes	No	Yes	No
economise	No	No	Yes	No

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

Other hyponyms of save include enter, put down, record, conserve, economize, husband.

As verbs, save and economise are synonyms defined as:

Other synonyms of save include economize.

save (noun)	economise (noun)
(sports) the act of preventing the opposition from scoring

save (verb)	economise (verb)
make unnecessary an expenditure or effort	use cautiously and frugally
record data on a computer	spend sparingly, avoid the waste of
to keep up and reserve for personal or special use
accumulate money for future use
spend less; buy at a reduced price
retain rights to
spend sparingly, avoid the waste of
bring into safety
save from ruin, destruction, or harm
save from sins
refrain from harming