Correct spellings for SIFFEN
- stiffen The cold weather made my joints stiffen up.
If you meant to spell "siffen", there are a few possible correct suggestions. It could be "siphon", a tool used to transfer liquids. Another option could be "sniffle", a term for a slight nasal blockage caused by a cold. Lastly, it could be "stiffen", referring to the action of becoming rigid or inflexible.
