“to discuss / to attack” in Japanese is 討, read tou, u (とう, う). It is a Grade 6 Kyōiku kanji, taught in year 6 of Japanese elementary school, and appears in words such as 討論 (debate).
What does 討 mean?
みんなで問題を討議する。
Same sound, different character — the classic trap. Compare them side by side: