木, 田, 言

chapter, lesson, section, department, division, counter for chapters (of a book)

課目(かもく): (school) subject; curriculum; course
課題(かだい): (1) subject; theme; issue; matter (2) homework; assignment (3) task; challenge; problem; question
課長(かちょう): section manager; section chief
課税(かぜい): taxation
課(か): (1) lesson (2) section (in an organization); division; department (3) counter for lessons and chapters (of a book)
課程(かてい): course; curriculum
日課(にっか): daily lesson; daily work; daily routine
課外(かがい): extracurricular