Indo-European Languages:
* English: One
* Spanish: Uno
* French: Un (masculine), Une (feminine)
* German: Eins
* Italian: Uno (masculine), Una (feminine)
* Portuguese: Um (masculine), Uma (feminine)
* Russian: Один (odin)
* Hindi: एक (ek)
* Greek: Ένας (enas, masculine), Μία (mia, feminine)
* Latin: Unus
Other Languages:
* Chinese (Mandarin): 一 (yī)
* Japanese: いち (ichi)
* Korean: 하나 (hana)
* Arabic: واحد (wāḥid)
* Hebrew: אֶחָד (ekhad)
* Turkish: Bir
* Vietnamese: Một
* Thai: หนึ่ง (nùeng)
* Japanese (kanji): 一 (ichi)
* Korean (hanja): 一 (il)
This is just a small sample, and there are many more languages in the world! If you are looking for a specific language, please let me know.