What is the name given to Sikh religious teachers?

Sikh religious teachers are commonly referred to as "Gurus." The term "Guru" means teacher or guide and is a central concept in Sikhism, with Guru Nanak being the first Guru and founder of the religion. Sikhs also respect the "Guru Granth Sahib," their holy scripture, as the eternal Guru after the ten human Gurus.