The Norwegian alphabet uses several letters with homonyms: , , , , , , and , which are not compulsory, but can be added to clarify the meaning of words.
The Danish and Norwegian alphabet, called the Dano-Norwegian alphabet is based upon the Latin alphabet and has consisted of the following 29 letters since 1917 (Norwegian) and 1948 (Danish). Nynorsk uses several letters with diacritic signs: e, e, e, o, o, a, and o. The diacritic signs are not compulsory, but can be added to clarify the meaning of words (homonyms) that would otherwise be identical. 
