hy·giene 
/ˈhaɪˌʤi:n/ noun
/ˈhaɪˌʤi:n/ noun [noncount] : the things that you do to keep yourself and your surroundings clean in order to maintain good health
▪ Poor sanitation and hygiene caused many of the soldiers to get sick. ▪ He has very poor personal hygiene. ▪ Brushing your teeth regularly is an important part of good dental/oral hygiene.
▪ Poor sanitation and hygiene caused many of the soldiers to get sick. ▪ He has very poor personal hygiene. ▪ Brushing your teeth regularly is an important part of good dental/oral hygiene.
