(Redirected from О)
'O' (О, о) is a letter of the
Cyrillic alphabet, representing the vowel word-initially and after hard consonants.
The letter's traditional name is ''on'', meaning "he", or "that" (masculine noun) in
Old Church Slavonic. It is derived from the Greek letter
omicron (Ο, ο).
See also
★
Vowel reduction in Russian
★
Ð