roll up vs salt away

roll up and salt away both are verbs.

Word	Noun	Adjective	Verb	Adverb
roll up	No	No	Yes	No
salt away	No	No	Yes	No

As verbs, salt away is a hypernym of roll up; that is, salt away is a word with a broader meaning than roll up:

Other hypernyms of roll up include hive away, lay in, put in, stack away, stash away, store.

roll up (verb)	salt away (verb)
form a cylinder by rolling	keep or lay aside for future use
form into a cylinder by rolling
show certain properties when being rolled
make into a bundle
close (a car window) by causing it to move up, as with a handle
arrive in a vehicle:
get or gather together