How to spell SUTUDEN correctly?

If "sutuden" was meant to be "student", suggestions include double-checking the spelling before submitting, using spell-check tools or improving spelling skills through practice. Another option is to ask someone else to proofread the text.

• student The student worked hard to earn a good grade on the exam.
• sudden A sudden gust of wind knocked over the trash can.

Putrefication

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