preserves vs jam

preserves and jam both are nouns.

Word	Noun	Adjective	Verb	Adverb
preserves	Yes	No	No	No
jam	Yes	No	Yes	No

As nouns, jam is a hyponym of preserves; that is, jam is a word with a more specific, narrower meaning than preserves:

Other hyponyms of preserves include apple butter, chowchow, lemon cheese, lemon curd, jelly, marmalade.

preserves (noun)	jam (noun)
fruit preserved by cooking with sugar	deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems
	preserve of crushed fruit
	a dense crowd of people
	informal terms for a difficult situation

preserves (verb)	jam (verb)
	interfere with or prevent the reception of signals
	crowd or pack to capacity
	get stuck and immobilized
	block passage through
	crush or bruise
	press tightly together or cram
	push down forcibly