Terms : Hide Images
| 5400102242 | Institutional Language | A language used in education, work, mass media, and government. | 0 | |
| 5400104785 | Literary Tradition | A language that is written as well as spoken. | 1 | |
| 5400104786 | Developing Language | A language spoken in daily use with a literary tradition that is not widely distributed. | 2 | |
| 5400106985 | Vigorous Language | A language that is spoken in daily use but lacks literary tradition. | 3 | |
| 5400109098 | Language Family | A collection of languages related to each other through a common ancestor long before recorded history. | 4 | |
| 5400110555 | Language Branch | A collection of languages related through a common ancestor that can be confirmed through archaeological evidence. | 5 | |
| 5400110556 | Language Group | A collection of languages within a branch that share a common origin in the relatively recent past and display relatively few differences in grammar and vocabulary. | 6 | |
| 5400112616 | Ethnologue | One of the most authoritative sources for languages. | 7 | |
| 5400112617 | Kurgan Hearth Theory | Krugans established land as theirs because of military purposes. | 8 | |
| 5400116297 | Anatolian Hearth Theory | Archaeologists think that these people were farmers searching for land, that is how they think Indo-European started. | 9 | |
| 5400116298 | Extinct Languages | A language that was once used by people in daily activities but no longer used. | 10 | |
| 5400118991 | Multilingual States | When a country has more than one dominant language. | 11 | |
| 5400118992 | Pidgin Language | A form of speech that adopts a simplified grammar and limited vocabulary of lingua franca; used for communications among speaker of two different languages. | 12 | |
| 5400120681 | Lingua Franca | A language mutually understood and commonly used in trade by people who have different native languages. | 13 | |
| 5400120682 | Dialect | A regional variety of a language distinguished by vocabulary, spelling, and pronunciation. | 14 | |
| 5400120683 | Isogloss | A boundary that separates regions in which different language usages predominate. | 15 | |
| 5400122991 | Isolated Language | A language that is unrelated to any other languages and therefore not attached to any language family. | 16 |
