確 assurance, firm, tight, hard, solid, confirm, clear, evident 15 strokes taught in grade 5 old JLPT 2 #252 in newspapers Readings Onカク、コウ Kunたし.か、たし.かめる In Chinese 确, traditional 確 Words written with it 確か たしか sure N4 確実 かくじつ certain N3 明確 めいかく clear N3 確保 かくほ securing N1 確認 かくにん confirmation N3 確立 かくりつ establishment N1 確定 かくてい decision N1 的確 てきかく accurate N2 確率 かくりつ probability N2 確かめる たしかめる to make sure N3 正確 せいかく accurate N3 確信 かくしん conviction N1