Hygienize is a term used to describe the act of maintaining cleanliness and sanitation. Synonyms for this word include sterilize, disinfect, sanitize, clean, purify, and decontaminate. Sterilize suggests the complete removal of all germs and bacteria, while disinfect refers to killing germs. Sanitize is a milder term and refers to reducing the number of germs. Clean refers to removing dirt and debris, while purify is the act of removing impurities from a substance. Decontaminate refers to making something free from harmful chemicals or bacteria. All of these words refer to the act of maintaining cleanliness and hygiene in order to prevent the spread of disease and promote health.