従兄弟: a male cousin / 従姉妹: a female cousin / 従兄妹: an older male cousin and younger female cousin / 従姉弟: an older female cousin and younger male cousin

a cousin

second cousin (grandnephew or grandniece of a grandparent)

doctor

(chiefly women's speech) first person singular pronoun: I, me

(polite) first-person singular pronoun: I, me

a personal or private matter / (by extension) selfishness

(formal) first-person singular pronoun: I, me

personal, private / secret

a personal or private matter / selfishness / privacy, secrecy / (women's speech, obsolete) a brother-in-law