弐 (readings: に, じ, ふた, そえ; Japanese kanji) means “Ii / Two / Second”. 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 弐万円 (twenty thousand yen).
What does 弐 mean?