<p><strong>Noun</strong></p><ul><li>Prince Siddhāttha or Siddhartha, 566?–c480 b.c., Indian religious leader: founder of Buddhism.</li><li>Also called Butsu.</li><li>Any of a series of teachers in Buddhism, of whom Gautama was the last, who bring enlightenment and wisdom.</li><li>(sometimes lowercase) Buddhism.</li><li>A person who has attained full prajna, or enlightenment; Arhat.</li></ul>