Hygiene is a seven letter word and it means cleanliness.
cleanliness
A 6-letter word for security is "safety." It refers to the condition of being protected from harm or danger. Safety can pertain to personal well-being, as well as the security of property or information.
Wash is a four letter word meaning "to clean with water".
Wash is a four letter word meaning "to clean with water".
unclean...
clean?
"CLEAN"
Clean.
Mop.
clean
Pruritus!
acne