Quotes:O

H. P. Blavatsky

O. The fifteenth letter and fourth vowel in the English alphabet. It has no equivalent in Hebrew, whose alphabet with one exception is vowelless. As a numeral, it signified with the ancients 11; and with a dash on it 11,000. With other ancient people also, it was a very sacred letter. In the Dêvanâgari, or the characters of the gods, its significance is varied, but there is no space to give instances.

Source: H. P. Blavatsky, The Theosophical Glossary, art. O