togetherness, reciprocity, brotherhood, fraternity, kinship

mutually

of oneself, of or by itself, spontaneously, automatically

private or family affair, matter of mutual concern, relationship, brotherhood, liaison, familiarity

to live together in harmony

mutual

mutual discussion, consultation

mutual, reciprocal, internal

private, personal, familial, ancestral, mutual, reciprocal, internal

mutual, reciprocal, internal, personal, private, familial, ancestral

together, mutually, reciprocally, jointly

relative, kith and kin, kinsman, kinswoman

autonomous, independent, free, self-governed, sovereign