meld vs blend

meld and blend both are nouns.

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

As verbs, meld and blend are synonyms defined as:

Other synonyms of meld include coalesce, combine, commingle, conflate, flux, fuse, immix, merge, mix.

As verbs, blend is a hypernym of meld; that is, blend is a word with a broader meaning than meld:

Other hypernyms of meld include coalesce, combine, commingle, conflate, flux, fuse, immix, meld, merge, mix.

meld (noun)	blend (noun)
a form of rummy using two decks of cards and four jokers; jokers and deuces are wild; the object is to form groups of the same rank	the act of blending components together thoroughly
	a new word formed by joining two others and combining their meanings
	an occurrence of thorough mixing

meld (verb)	blend (verb)
mix together different elements	mix together different elements
lose its distinct outline or shape; blend gradually	combine into one
announce for a score; of cards in a card game	blend or harmonize