suspense vs apprehension

suspense and apprehension both are nouns.

Word	Noun	Adjective	Verb	Adverb
suspense	Yes	No	No	No
apprehension	Yes	No	No	No

As nouns, apprehension is a hypernym of suspense; that is, apprehension is a word with a broader meaning than suspense:

Other hypernyms of suspense include apprehensiveness, dread.

suspense (noun)	apprehension (noun)
an uncertain cognitive state	the act of apprehending (especially apprehending a criminal)
excited anticipation of an approaching climax	the cognitive condition of someone who understands
apprehension about what is going to happen	painful expectation
	fearful expectation or anticipation