affinity
a natural attraction or feeling of kinship
an affinity for politics
the mysterious affinity between them
James's affinity with Sam
inherent resemblance between persons or things
chemical attraction
the force attracting atoms to each other and binding them together in a molecule
basic dyes have an affinity for wool and silk
(immunology) the attraction between an antigen and an antibody
kinship
a close connection marked by community of interests or similarity in nature or character
found a natural affinity with the immigrants
felt a deep kinship with the other students
anthropology's kinship with the humanities
phylogenetic relation
(biology) state of relationship between organisms or groups of organisms resulting in resemblance in structure or structural parts
in anatomical structure prehistoric man shows close affinity with modern humans
(anthropology) kinship by marriage or adoption; not a blood relationship