When you use it
Use this when two words look almost the same and differ only in one doubled letter, as in Gubbaa and Gubaa.
Watch out
Dropping the doubled letter changes the meaning. Gubbaa (on top, irra keessa) written as Gubaa means fire (ho'aa). Write both letters wherever the sound is long.
Drafted from Grade 9 Afaan Oromoo, pages 1-9, then checked twice before it went up