 nwi

Tone is part of the character in Ndebe, not a mark added to it, so one syllable is written three different ways. These are the same shape family — the character on the left in each box is the one to learn first, and it is the form the chart shows.

No published entry in this dictionary uses this syllable yet. The chart still shows it, because a syllabary is the whole set of its characters rather than the ones that happen to appear in a word list — but there is nothing here to read it in.