True Meaning of Khalsa

 Guru Gobind Singh ji wished to establish a new Sikh order—the Khalsa. The word derives from an Arabic word "khalis," meaning “pure.” The Khalsa would be a disciplined body of God’s own saints and soldiers, men and women of courage and dedication who would adhere to the highest codes of conduct and the highest morality. Members of the Khalsa would never flinch in performing their duty to God and their fellow human beings, just as the five Sikhs had willingly offered their lives to the guru.

source: pluralism.org/the-khalsa