JLPT N1 Vocabulary 潜入 (sennyuu) infiltration, sneaking in JLPT N1 Learning Done Flashcards Recall mode Meaning 潜入 (せんにゅう, sennyuu) is a JLPT N1 vocabulary word meaning “infiltration, sneaking in”. Kanji in this word 潜 submerge 入 enter ← Previous嵩張る All N1 vocabulary Next →アラブ