JLPT N1 Vocabulary 着工 (chakkou) start of (construction) work JLPT N1 Learning Done Flashcards Recall mode Meaning 着工 (ちゃっこう, chakkou) is a JLPT N1 vocabulary word meaning “start of (construction) work”. Kanji in this word 着 don 工 craft ← Previous総 All N1 vocabulary Next →丁々