検査
けんさ · kensa · JLPT N3 · noun
examination
🔍 検 check + 査 investigate; kensa sounds like census, an official inspection
Both kanji carry the tree radical 木. 検 means to check or examine, as in 点検 (tenken, maintenance check). 査 means to investigate, as in 調査 (chōsa, survey). Put the two together and you get a thorough inspection.