the Austronesian Tongan language

the Chechen language

Samoan (language of the Samoa)

Avar language

the Tonga language (Zambia and Zimbabwe) / the Tonga (Nyasa) language, spoken in Malawi / the Guitonga language (Mozambique)

reserved word

(grammar) a dependent/enclitic/bound morpheme or form in Japanese, marked by its dependence to a 自立語 (jiritsugo, “free word”) and its lack of distinct pitch accent

Oroqen language

(dated) Gilyak language

the Igbo language