A

A means not any particular or certain one of a class or group.

Pronounciation
Ey

Example
Can a friend come round, mum?

Welsh (Cymraeg)
Mae

Irish (Gaeilge)
A

Spanish (Español)
Un

Portuguese (Português)
A

Italian (Italiano)
Un

French (Français)
Un

Dutch (Nederlands)
Een

German (Deutsch)
Ein

Polish (Polski)
Za

Norwegian (Norske)
A

Swedish (Svenska)
En

Finnish (Suomi)
La

Icelandic (Íslenska)
A

Estonian (Eesti)
La

Latvian (Latvija)
???

Lithuanian (Liestuvos)
La

Belarusian (Беларуская)
???

Russian (Pусский)
ля

Turkish (Türkçe)
Bir

Georgian (საქართველოს)
???

Armenian (հայերեն)
Ա

Azerbaijani (Erməni)
Bir