sustain vs continue

sustain and continue both are verbs.

Word	Noun	Adjective	Verb	Adverb
sustain	No	No	Yes	No
continue	No	No	Yes	No

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

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

As verbs, continue is a hyponym of sustain; that is, continue is a word with a more specific, narrower meaning than sustain:

sustain: lengthen or extend in duration or space
continue: allow to remain in a place or position or maintain a property or feature

Other hyponyms of sustain include keep, keep on, retain.

sustain (verb)	continue (verb)
undergo (as of injuries and illnesses)	exist over a prolonged period of time
establish or strengthen as with new evidence or facts	continue talking
admit as valid	move ahead; travel onward in time or space
supply with necessities and support	allow to remain in a place or position or maintain a property or feature
provide with nourishment	keep or maintain in unaltered condition; cause to remain or last
be the physical support of; carry the weight of	continue a certain state, condition, or activity
lengthen or extend in duration or space	span an interval of distance, space or time
	continue in a place, position, or situation
	continue after an interruption
	do something repeatedly and showing no intention to stop