There are lots of ways to think about language. For the purposes of speech recognition models, Common Voice suggests focussing on ‘mutual intelligibility’, or ‘can speakers of this language mostly understand one another if they try to?’
Hu na nḓila nnzhi dza u humbula nga luambo. Musi hu tshi itelwa zwishumiswa zwa u ḓivha ipfi, Common Voice i eletshedza uri ri livhise ṱhogomelo kha ‘u pfana ha vhathu vha nyambo dzi sa fani’, kana uri ‘naa vha ambi vha holwu luambo vha nga kona u pfana zwavhuḓi arali vha lingedza u ita ngauralo?’