How to spell FOUCUSES correctly?

If you're trying to spell "focusses", you're close. Other correct suggestions for this misspelling might be "focuses" or "foci". It can be tricky to remember all the different spellings of words, especially when they have tricky plural forms, but with practice, it gets easier!

• caucuses In the caucuses, the delegates are chosen.
• focused During yoga class, I try to stay focused on my breathing and not let my mind wander.
• Focuses The teacher's lesson plan focuses on grammar and syntax.

Putrefication

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