the Chechen language

Ingush language

the Austronesian Tongan language

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

Samoan (language of the Samoa)

Avar language

reserved word

polite language

onomatopoeia (word that sounds like what it represents)

(grammar) an autonomous/independent/free morpheme or word in Japanese, marked by its independence from other words and its distinct pitch accent