蕃 {bō}

1. Tubo or Tufan, old name for Tibet
2. the Tibetan Tubo dynasty 7th-11th century AD
3. also pr. [Tu3 fan1]

蕃 {fān}

1. foreign country
2. foreigner
3. foreign (non-Chinese)
4. barbarian
5. classifier for occurrences (of an action or deed)
6. -fold (as in twofold etc)
7. kind
8. sort

蕃薯 faan⁴ syu⁴ {fān shǔ}

sweet potato