How to spell SROUND correctly?

If you are trying to spell "sround", it seems like you might be referring to "surround". When talking about something encircling or enclosing, "surround" is the correct term. Additionally, if you intended to write "sound", it pertains to the vibrations perceived by our ears.

• around
• ground
• round
• sound
• surround The high walls surround the castle.

Putrefication

• nitrification
• petrifaction
• purification
• putrefaction
• putrification
• vitrification