Romance Languages:
* Spanish: ir (formal), andar (informal)
* French: aller
* Italian: andare
* Portuguese: ir
* Romanian: a merge
Germanic Languages:
* German: gehen
* Dutch: gaan
* Swedish: gå
* Norwegian: gå
* Danish: gå
* Icelandic: fara
* English: go (of course!)
Slavic Languages:
* Russian: идти (idti)
* Polish: iść
* Czech: jít
* Ukrainian: йти (yty)
* Serbian: ићи (ići)
Other Languages:
* Chinese (Mandarin): 去 (qù)
* Japanese: 行く (iku)
* Korean: 가다 (gada)
* Arabic: ذهب (dhahab)
* Hindi: जाना (jaana)
* Greek: πήγαινε (pígene)
* Turkish: gitmek
* Vietnamese: đi (đi)
* Finnish: mennä
* Hungarian: menni
This is just a small sample, and there are many more words for "go" in other languages.
Remember that the best word to use will depend on the context and the level of formality. For example, in Spanish, "ir" is more formal than "andar".