講座 (こうざ)course (e.g. of lectures); academic university unit (professor, lecturers, etc.)

course (e.g. of lectures)noun (common) (futsuumeishi)
academic university unit (professor, lecturers, etc.)noun (common) (futsuumeishi)

講座, its kanji, and other words that share them.Open this graph

Kanji in 講座

講演こうえんlecture; address
講師こうしlecturer
受講じゅこうtaking a lecture; attending a class
講義こうぎlecture
講習こうしゅうshort course; training
講堂こうどうauditorium; lecture hall
講談こうだんstorytelling (of war chronicles, revenge tales, etc.) with highly dramatic delivery; story
講ずるこうずるto take measures; to work out a plan
座ざseat; place
銀座ぎんざGinza (shopping district in Tokyo)
座長ざちょうchairman
口座こうざaccount (e.g. bank)
座席ざせきseat
王座おうざthrone
即座そくざimmediate; right there on the spot
座談会ざだんかいsymposium; round-table discussion

See how 講座 connects to the rest of Japanese.