Knight of the Order of St Gregory the Great (a Papal honorary title)
[ksha-tree-uh] /ˈkʃæ tri ə/ noun 1. a member of the Hindu royal and warrior class above the Vaisyas and below the Brahmans. /ˈkʃætrɪə/ noun 1. a member of the second of the four main Hindu castes, the warrior caste
[key-shel] /ˈkeɪˌʃɛl/ noun, Physics. 1. the first shell of electrons surrounding the nucleus of an atom and containing, when filled, two electrons having principal quantum number 1.
1. one thousand pounds per square inch.