Definition that contains lingua franca
- swahili the most widely spoken Bantu languages; the official language of Kenya and Tanzania and widely used as a lingua franca in east and central Africa
- ful a family of languages of the Fulani of West Africa and used as a lingua franca in the sub-Saharan regions from Senegal to Chad; the best known of the West African languages
- fulani a family of languages of the Fulani of West Africa and used as a lingua franca in the sub-Saharan regions from Senegal to Chad; the best known of the West African languages
- fula a family of languages of the Fulani of West Africa and used as a lingua franca in the sub-Saharan regions from Senegal to Chad; the best known of the West African languages
- peul a family of languages of the Fulani of West Africa and used as a lingua franca in the sub-Saharan regions from Senegal to Chad; the best known of the West African languages
- chinook jargon a pidgin incorporating Chinook and French and English words; formerly used as a lingua franca in northwestern North America
- oregon jargon a pidgin incorporating Chinook and French and English words; formerly used as a lingua franca in northwestern North America