Level: 2
| English | REACTION |
| Spanish | REACCIÓN |
| German | REAKTION |
| French | RÉACTION |
| Netherlands | REACTIE |
| Italian | REAZIONE |
| Russian | РЕАКЦИЯ |
| Portuguese | REAÇÃO |
| Swedish | REAKTION |
| Danish | REAKTION |
| Norwegian | REAKSJON |
| Finnish | REAKTIO |
| Turkish | TEPKIME |
| Polish | REAKCJA |
| Greek | ΑΝΤΙΔΡΑΣΗ |
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| Czech | REAKCE |
| Lithuanian | REAKCIJA |
| Latvian | REAKCIJA |
| Estonian | REAKTSIOON |
| Korean | |
| Hungarian | KÉMIAI REAKCIÓ |
| Romanian | REACȚIE |
| Spanish(LA) | REACCIÓN |
| Portuguese(Br) | REAÇÃO |
| Belarusian (be) | РЭАКЦЫЯ |
| Bulgarian (bg) | РЕАКЦИЯ |
| Ukrainian (uk) | РЕАКЦІЯ |
| Serbian (sr) | РЕАКЦИЈА |
| Croatian (hr) | REAKCIJA |
| Slovak (sk) | REAKCIA |
| Slovenian (sl) | REAKCIJA |
| Arabic (ar) | تفاﻉل |
| Hebrew (he) | תגובה |
| Thai (th) | ปฏิกิริยาเคมี |
| Indonesian (id) | REAKSI |
| Malay (ms) | TINDAK BALAS |
| Philipines (tl) | REAKSYON |
| French(Ca) | RÉACTION |
| ENGLISH(UK) | REACTION |