sustain vs carry on

sustain and carry on both are verbs.

Word	Noun	Adjective	Verb	Adverb
sustain	No	No	Yes	No
carry on	No	No	Yes	No

As verbs, carry on is a hypernym of sustain; that is, carry on is a word with a broader meaning than sustain:

Other hypernyms of sustain include bear on, continue, preserve, uphold.

sustain (verb)	carry on (verb)
undergo (as of injuries and illnesses)	continue talking
establish or strengthen as with new evidence or facts	direct the course of; manage or control
admit as valid	misbehave badly; act in a silly or improper way
supply with necessities and support	keep or maintain in unaltered condition; cause to remain or last
provide with nourishment
be the physical support of; carry the weight of
lengthen or extend in duration or space