cut back vs abridge

cut back and abridge both are verbs.

Word	Noun	Adjective	Verb	Adverb
cut back	No	No	Yes	No
abridge	No	No	Yes	No

As verbs, abridge is a hyponym of cut back; that is, abridge is a word with a more specific, narrower meaning than cut back:

Other hyponyms of cut back include immobilise, immobilize, ration, control, restrict.

cut back (verb)	abridge (verb)
place restrictions on	reduce in scope while retaining essential elements
cut down on; make a reduction in	lessen, diminish, or curtail
cultivate, tend, and cut back the growth of
return in time