What does Taharah from hadath Mean?

Hadath is a state of dirtiness, impurity that prevents a person from performing some kinds of worshipping. For instance, not having wudu, janabah (the state when a person has to make ghusl), being in the menstruation period, being in the period of puerperium... Tahara from hadath is realized by making wudu or ghusl depending on the type of hadath.