affinity vs attraction

affinity and attraction both are nouns.

Word	Noun	Adjective	Verb	Adverb
affinity	Yes	No	No	No
attraction	Yes	No	No	No

As nouns, attraction is a hypernym of affinity; that is, attraction is a word with a broader meaning than affinity:

affinity: a natural attraction or feeling of kinship
attraction: the quality of arousing interest; being attractive or something that attracts

Other hypernyms of affinity include attractiveness.

As nouns, attraction is a hypernym of affinity; that is, attraction is a word with a broader meaning than affinity:

Other hypernyms of affinity include attractive force.

affinity (noun)	attraction (noun)
inherent resemblance between persons or things	the quality of arousing interest; being attractive or something that attracts
a natural attraction or feeling of kinship	a characteristic that provides pleasure and attracts
the force attracting atoms to each other and binding them together in a molecule	an entertainment that is offered to the public
(immunology) the attraction between an antigen and an antibody	an entertainer who attracts large audiences
(anthropology) kinship by marriage or adoption; not a blood relationship	the force by which one object attracts another
(biology) state of relationship between organisms or groups of organisms resulting in resemblance in structure or structural parts
a close connection marked by community of interests or similarity in nature or character