doubt vs uncertainty

doubt and uncertainty both are nouns.

Word	Noun	Adjective	Verb	Adverb
doubt	Yes	No	Yes	No
uncertainty	Yes	No	No	No

As nouns, uncertainty is a hypernym of doubt; that is, uncertainty is a word with a broader meaning than doubt:

Other hypernyms of doubt include precariousness, uncertainness.

As nouns, doubt and uncertainty are synonyms defined as:

Other synonyms of doubt include doubtfulness, dubiety, dubiousness, incertitude.

doubt (noun)	uncertainty (noun)
uncertainty about the truth or factuality or existence of something	being unsettled or in doubt or dependent on chance
the state of being unsure of something	the state of being unsure of something

doubt (verb)	uncertainty (verb)
consider unlikely
lack confidence in