← Exam 2 Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All Language a system of communication in which concepts are transmitted interpersonally in both written and oral forms. Language Family collection of languages related through a common ancestor that existed long before recorded history language brANCH language existed several thousands of years ago language group collection of language within a branch that share a common origin in the relatively recent past dialect variety of a language distinguished by vocabulary, spelling, and pronunciation official language one or more languages designated as official by the governments to be used for laws, reports and public objects Lingua Franca language of international communication Indo-European Language Family over 3 billion people speak them 2.5 as a native lagnuage Germanic, Romance, Indo-Iranian, Balto Slavic 4 branches of Indo European Language Family Sino-Tibetan Language Family language of China and others of Southeast Asia Sinitic, Austro-Thai, Tibeto-Burman 3 main branches of Sino-Tibetan Language Family Afro-Asiatic Language Family Hebrew and many other smaller languages in Northern Africa and SW Asia Hebrew and Arabic 2 major languages of Afro-Asiatic Language Family Language Families in Africa niger-congo, nilo-saharan, and Khoisan isolated language language unrelated to any other and thus is not attached to any language family standard language dialect that is well established of widely recognized as the most acceptable for government business, education and mass communication isogloss a boundary that separates regions where in which different language usage predominates nilo-saharan, niger-congo, khoisan 3 major Language Families in Africa