Nām Japō (Gurmukhi ਨਾਮ ਜਪੋ), or Naam Japna, refers to the meditation, vocal singing of hymns from the Sri Guru Granth Sahib or of the various Names of God, especially the chanting of the word Waheguru, which means "Wonderful Lord". Singing of hymns generally is also referred to as Nām Jap, sometimes also called Nām Simran. Singing of hymns with musical accompaniment is generally referred to as Kirtan.