In Albanian, by Qerimi : Di

This language is spoken in Albania, Kosovo, Macedonia, and Montenegro.

In Arabic (literary), by Frédéric Wronecki : اثنان (ithnan)

This language is spoken in North Africa, the Middle-East and the Arabian Peninsula.

Note : In Literary Arabic, there are three numbers : singular, dual and plural, and you can talk about several objects without using the numbers, for example : a book = kitab, two books = kitabani, three books = thalatha koutoub…

In Aymara, by Valérie : Paya

This language is spoken in Bolivia, Peru and northern Chile.

In Basque, by Maider : Bi

This language is spoken in France and Spain.

In Breton (brezhoneg), by Guillaume, Gwenn and Rozenn: Daou (masculine), and diou (div) (feminine).

Breton is spoken in Brittany (France).

In Chukchi, by Charles Weinstein : N’ireq

This language is spoken in Chukotka (Russia).

In Cornish, by Anna : Dew

This language is spoken in Cornwall.

In Breton (Brezhoneg), by Guillaume, Gwenn and Rozenn: Daou (masculine), Diou (feminine)

This language is spoken in Brittany (France).

In Divehi, by Thomas : Dheiy

This language is spoken in the Maldives.

In Dutch, by Romane : Twee

This language is spoken in the Netherlands and Belgium.

In Esperanto, by Thomas : Du

This language is spoken all over he world.

In Fala, by Eusebio Martin Marquez : Dois, Duas

This language is spoken in Spain, in the northern part of Extremadura.

Note : “Dois” is the masculine form of the word and “duas” the feminine form.

In Finnish, by Alexis Bruneau : Kaksi

This language is spoken in Finland.

In French, by Michel : Deux

In Fula (Pulaar, Fulfulde), by Seydou : DiDi
For people : DiDo

This language is spoken in Cameroon, in the Centrafrican Republic, in Chad, Sudan, Nigeria, Niger, Burkina Faso, Mali, Mauritania, Senegal, Gambia, Guinea, Bissau Guinea, Liberia, Sierra Leone, Ghana, Togo and Benin.

Note: D = glotalised d.

In Futunan, by Hermel : lua

Futunan is spoken in Wallis and Futuna.

Note: the word for “two” is the same in Futunan and Wallisan.

In German, by Petra : Zwei

This language in Germany, Belgium, Austria, eastern Switzerland.

In Hausa, par Benoite-Abdelkader : Biyu

This language is spoken in West Africa, Benin, Cameroon, Central African Republic, Republic of the Congo, Ghana, Nigeria (north), Togo.

In Hmong, by Lo : Ob

This language is spoken in China, Laos, Thailand.

In Irish Gaelic, by Aonghus : Dó

This language is spoken in Ireland.

In italian, by Viviane: Due

In Japanese, by Fenrir : Ni (ニ)

This language is spoken in Japan.

In Kabyle, by Soraya : Sine

This language is spoken in Algeria.

In Kashmiri, by Hilal Ahmed Sheikh: Zze

This language is spoken in Kashmir, in the north of India

In Kâmviri, by Tomek : dü

Kâmviri is spoken in the north-eastern part of Afghanistan, in the province of Nuristan. It is one of the Nuristani dialects.

In Kiholo (Holu), by Mvwala Katshinga : Mdadi

This language is spoken in the Democratic Republic of Congo and in Angola

In Lingala, by Angèle Bongongo : Mibale

This language is spoken in Congo-Brazzaville, in DR Congo, and in the Central African Republic.

In Mapuche (Mapudungun), by Alejandra Vergara : Epu

This language is spoken in southern Chili and Argentina (Araucania).

In Medumba, by Anna : Bo

This language is spoken in Cameroon.

In (classical) Nahuatl, by Romane : Ome

This language is spoken in Mexico.

In Nda’nda’, by Tchagoua : Paa

This language is spoken in Cameroon.

In Norwegian (Bokmål), by Dominique and by Tomek : To

This language is spoken in Norway.

In Otomi (Hñähñu), par Raymundo : Yoho

This language is spoken in the Mezquital valley, State of Hidalgo, Mexico.

In Portuguese, by Regina Giglio : Dois

This language is spoken in Portugal, Brazil, Guinea-Bissau, Cape Verde, Angola, Mozamibique, Timor.

In Quechua, by Gloria Caceres : Iskay

This language is spoken in Peru, Bolivia, Ecuador, and nortwestern Argentina.

In Rromani, by Mazllum : Duj

In Russian, by Violaine : Dva, Dvie

In Soninké, by Herbert Braun : Filla, Fillo

This language is spoken in Mali, Mauritania, Sénégal.

In Spanish, by Michel : Dos

In Toki pona, by Pieter Jansegers : tu

This language is spoken on Internet since 2001.

In Wallisan, by Hermel : lua

Wallisan is spoken in Wallis and Futuna.

Note: the word for “two” is the same in Wallisan and Futunan.

In Wolof, by Adja : gnaar

This language is spoken in Senegal and Gambia.