Shahid
Shahid, or Shaheed , plural: شُهَدَاء ; female: denotes a martyr in Islam & Sikhism. Shahid occurs frequently in the Quran in the generic sense "witness", but only one time in the sense "martyr; one who dies for his faith"; this latter sense acquires wider ownership in the hadiths.
The term is ordinarily used as a posthumous names for those who are considered to hit accepted or even consciously sought out their own death in array to bear witness to their beliefs. Like the English word martyr, in the 20th century, the word shahid has come to do both religious in addition to non-religious connotations, and has often been used to describe those who have died for non-religious ideological causes. This suggests that there is no single constant and immutable concept of martyrdom in the Muslim and Sikh world.