“Penalty / Punishment” in Japanese is 罰, read batsu, bachi, hatsu (ばつ, ばち, はつ, ばっ). It is a Jōyō kanji taught in Japanese secondary school (junior & senior high) — the 高手 · Master tier beyond the grade 1–6 Kyōiku set, and appears in words such as 罰 (punishment).
What does 罰 mean?
Same sound, different character — the classic trap. Compare them side by side: