1
Niger-Kordofanian language
1
Nilo-Saharan
1
Nilo-Saharan language
1
Papuan
1
Papuan language
1
Sino-Tibetan
1
Sino-Tibetan language
1
Susian
1
Ural-Altaic
1
first language
1
maternal language
1
mother tongue
1
tonal language
1
tone language
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APASmart Define. (2013). natural language thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/natural_language/thesaurus/narrower
ChicagoSmart Define. 2013. "natural language thesaurus" https://smartdefine.org/natural_language/thesaurus/narrower (accessed September 25, 2026).
HarvardSmart Define 2013, natural language thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/natural_language/thesaurus/narrower>.
MLASmart Define. "natural language thesaurus" 18 May 2013. Web. 25 September 2026. <https://smartdefine.org/natural_language/thesaurus/narrower>