Namimah means telling some people what others have said about them in order to cause trouble or dissention among them.
Ghibah is to say something about your brother in faith that he does not like. If what you say is true, you are backbiting against him; if it is not, you are slandering him.
Zur means to say something that is utterly devoid of truth.
as for "Taqwa'' it means that you should avoid the torment of Allah by making a barrier between you and it, doing what Allah orders and avoiding what He prohibits.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.