Here is the full list of real words you can make from the letters in BIFFOS, presented in a clean layout for a quick check.
Words You Can Make from BIFFOS
3-letter words
- BIO5
- BIS5
- BOS5
- FIB8
- FOB8
- IFF9
- IFS6
- OBI5
- OFF9
- SIB5
- SOB5
4-letter words
- BIFF12
- BIOS6
- FIBS9
- FOBS9
- OBIS6
- OFFS10
5-letter words
- BIFFO13
- BIFFS13
6-letter words
- BIFFOS14
The list above contains all words you can make from BIFFOS sorted by length. In total, it yields 20 valid words.