Word

department; section; faculty; school; arm; course (of study); branch of study; specialization; (taxonomical) family
Word

科、階
しな
article; item; thing; goods; stock; quality; flirtatiousness; coquetry
Word

とが
error; mistake; fault; sin; wrongdoing; offense
Word

科学

かがく
science
Word

学科

がっか
study subject; course of study; department (university, etc.)
Word

外科

げか
surgery; department of surgery (hospital, etc.)
Word

歯科

しか
dentistry
Word

百科

ひゃっか
many objects (for study); encyclopedia; encyclopaedia
Word

科目

課目
かもく
(school) subject; curriculum; course
Word

内科

ないか
internal medicine, i.e. treatment by medical procedures rather than surgical procedures; department of internal medicine (hospital, etc.)