"Ifk": lying. It is derived from "afk", which means changing and diverting the truth. Other meanings: sin, false testimony, slander, falsehood.
"Qadhf": throwing something away. It also means cursing and was later used to refer to false accusation of adultery.
"Ihsān": preventing. A "muhsana" woman is a chaste one.
"Ta‘wīd": giving compensation to someone. It is derived from "‘iwad", which means: compensation, substitute.
"‘Ird": honor, esteem. It is said to be anything for which a person is praised or dispraised.
"‘Iffah": refraining and abstaining from what is bad and objectionable. Original meaning: scarcity. Other meanings: purification, chastity.
"Iftrā’" (pl. fira): lying. It is derived from "fary", which means cutting, splitting. Other meanings: slander, oppression, fabrication, pretense.
Any bad words intended to degrade and insult someone.
False accusation of adultry without evidence.
Male and female friends, who secretly have sexual relations with each other.
A man's claim that he is the father of a person whose lineage is unknown.