The Yoruba language belongs to the Congo-Kordofanian language family. Yoruba has many dialects, but its speakers can all understand each other. Yoruba is a tonal language. The same combination of vowels and consonants has different meanings depending on the pitch of the vowels (whether they are pronounced with a high voice or a low voice). For example, the same word, aro , can mean cymbal, indigo dye, lamentation, and granary, depending on intonation. Pele o is "Hello"; Bawo ni? is "How are you?"; and Dada ni is "Fine, thank you."