Added 10 October 2026 sino-tibetan noun Categories: LanguageObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about sino-tibetan at Wordnik → Where our words come from → The family of tonal languages spoken in eastern Asia. Related Words: tibeto-burmansino-koreantibetologicalsino-americansiniticsinologicaltaoistichimalayansinesiansinophonictethyan Back to today's word