confessional

confessional
/kənˈfeʃənl; kən`fɛʃənəl/ n
private, usu enclosed, place in a church where a priest sits to hear confessions （教堂中神父听取忏悔的）告解室
    the secrets of the confessional 在告解室中吐露的隐情.

牛津英汉双解词典