1. Plural of hygiene; conditions and practices that promote health and prevent disease, especially cleanliness.
Usage: Usually used in plural when referring to multiple types or aspects of hygiene practices.
2. Plural of hygiene; the science or study of health and the conditions necessary to maintain it.
Usage: Academic or technical usage; less common than the first sense.

Examples

• Good oral hygienes include brushing twice daily and flossing.
• The hospital emphasized strict hygienes to prevent infection.
• Personal hygienes are essential for preventing the spread of illness.
• Different cultures have varying standards for hygienes and cleanliness.
• The school taught children about proper food hygienes in the cafeteria.
• Industrial hygienes protect workers from hazardous conditions.
• Mental health hygienes, like sleep and exercise, are just as important as physical cleanliness.