conserve vs economise

conserve is a noun but economise is not a noun.

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

As verbs, conserve and economise are synonyms defined as:

Other synonyms of conserve include economize, husband.

conserve (noun)	economise (noun)
fruit preserved by cooking with sugar

conserve (verb)	economise (verb)
preserve with sugar	use cautiously and frugally
use cautiously and frugally	spend sparingly, avoid the waste of
keep in safety and protect from harm, decay, loss, or destruction
keep constant through physical or chemical reactions or evolutionary change