Niger-Kordofanian language and Natural language

Niger-Kordofanian language noun - The family of languages that includes most of the languages spoken in Africa south of the Sahara; the majority of them are tonal languages but there are important exceptions (e.g., Swahili or Fula).

Natural language and Niger-Kordofanian language are semantically related. In some cases you can use "Natural language" instead a noun phrase "Niger-Kordofanian language".

Natural language noun - A human written or spoken language used by a community; opposed to e.g. a computer language.

Niger-Kordofanian language and natural language are semantically related. Sometimes you can replace phrase "Niger-Kordofanian language" with "Natural language", this phrases are similar.