| Part of speech | common noun |
|---|---|
| Gender | common |
| Plural | reäksjes |
| Afrikaans | reaksie |
|---|---|
| Czech | reakce |
| Dutch | reactie; terugslag; weerslag; respons |
| English | reaction |
| Esperanto | reago; reagado |
| French | conséquence; répercussion; réponse; réaction |
| German | Reaktion; Rückwirkung; Gegenwirkung; Antwort |
| Low German | reakty; reaksioon; reaksy |
| Papiamento | reakshon |
| Polish | reakcja |
| Portuguese | reacção |
| Spanish | reacción |
| Swedish | reaktion |
| Turkish | aksitesir |
| Yiddish | רעאַקציע |