vehemence vs emphasis

vehemence and emphasis both are nouns.

Word	Noun	Adjective	Verb	Adverb
vehemence	Yes	No	No	No
emphasis	Yes	No	No	No

As nouns, vehemence and emphasis are synonyms defined as:

vehemence (noun)	emphasis (noun)
the property of being wild or turbulent	intensity or forcefulness of expression
intensity or forcefulness of expression	the relative prominence of a syllable or musical note (especially with regard to stress or pitch)
	special and significant stress by means of position or repetition e.g.
	special importance or significance