This document provides definitions and related terms for over 50 English technical terms used for da'wah (Islamic preaching/proselytizing). Some of the key terms defined include: adultery, alcoholism, apostasy, atheist, believe, chastity, command, convert, deity, destiny, faith, fornication, guidance, homicide, inheritance, interest, monotheism, morality, obligate, oppose, pedophile, polytheism, principle, prohibit, propagate, purify, repentance, resurrect, sacrifice, scriptures, slander, spirituality, testify, theory of evolution, treason, unique, vice, virtue, and worship. Related words and derivatives are also