universal language

hypothetical language that is supposed to have been spoken by all or most of the world's population

en-GB/ˌjuːnɪˈvɜːsəl ˈlæŋɡwɪd͡ʒ/
en-US/ˌjunəˈvɝsəl ˈlæŋɡwɪd͡ʒ/

زمرے:

scientific hypothesislanguage