excitation vs sensation

excitation and sensation both are nouns.

Word	Noun	Adjective	Verb	Adverb
excitation	Yes	No	No	No
sensation	Yes	No	No	No

As nouns, sensation is a hyponym of excitation; that is, sensation is a word with a more specific, narrower meaning than excitation:

Other hyponyms of excitation include fever, fever pitch, feverishness.

excitation (noun)	sensation (noun)
something that agitates and arouses	an unelaborated elementary awareness of stimulation
the neural or electrical arousal of an organ or muscle or gland	the faculty through which the external world is apprehended
the state of being emotionally aroused and worked up	a general feeling of excitement and heightened interest
	someone who is dazzlingly skilled in any field
	a state of widespread public excitement and interest