blend vs confluence

blend and confluence both are nouns.

Word	Noun	Adjective	Verb	Adverb
blend	Yes	No	Yes	No
confluence	Yes	No	No	No

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

Other hyponyms of blend include conflux, merging, homogenisation, homogenization.

blend (noun)	confluence (noun)
the act of blending components together thoroughly	a flowing together
a new word formed by joining two others and combining their meanings	a coming together of people
an occurrence of thorough mixing	a place where things merge or flow together (especially rivers)

blend (verb)	confluence (verb)
mix together different elements
combine into one
blend or harmonize