JLPT N1 Vocabulary 切開 (sekkai) clearing (land), opening up, cutting through JLPT N1 Learning Done Flashcards Recall mode Meaning 切開 (せっかい, sekkai) is a JLPT N1 vocabulary word meaning “clearing (land), opening up, cutting through”. Kanji in this word 切 cut 開 open Example sentences 1 半年はんとし 前まえに 帝王切開ていおうせっかいしました。 I had a Caesarian section six months ago. ← Previous蛋白質 All N1 vocabulary Next →膨脹