First of the ten titles: Tathagata [nyorai]
means a man who comes from the truth and who does not stay in any realm of form
or form world, who comes from truth and who goes back to the truth, or someone
who preaches right Dharma and right law, or someone who observes things as it
is. Arhat [arakan] is one who has attained perfect enlightenment, the
attainment of the Theravada Buddhist. Samyaksambuddha [shohenchi] is Buddha who
knows everything and who knows things as it is, who has no discrepancy or one
sided understanding or observation. -------------------------------- Excerpt from Shunryu Suzuki lecture - 68-02-00-C as found on shunryusuzuki.com. Edited by DC