[2] The modern Igbo alphabet is made up of 36 letters,[3] which includes only a 23-letter set of the ISO basic Latin alphabet minus Q and X, which are not part of Abidịị Igbo.

There are numerous Igbo dialects, some of which are not mutually intelligible.

The standard written form of Igbo is based on the Owerri and Umuahia dialects of Igbo.

A New Standard Orthography has been proposed for Igbo, and it was used, for example, in the 1998 Igbo English Dictionary by Michael Echeruo, but it has not been otherwise widely adopted.

In this orthography, diaeresis replaces the dot below (ï ö ü), and the ch digraph is not used.The 36-letter alphabet is called Mkpụrụ Edemede or Abidịị, featuring 28 consonants (mgbochiume) [clarification needed]and 8 vowels[4] (ụdaume).