| Part of speech | adjective |
|---|---|
| Hyphenation | cert·a |
| Singular | Plural | |
|---|---|---|
| Nominative | certa | certaj |
| Accusative | certan | certajn |
| Afrikaans | seker |
|---|---|
| Catalan | cert |
| Danish | sikker |
| Dutch | zeker |
| English | certain; sure; for sure |
| Faeroese | vissur |
| Finnish | varma |
| French | assuré; certain; sûr |
| German | bestimmt; gewiß; sicher; zuversichtlich; unzweifelhaft |
| Hungarian | bizonyos; biztos |
| Icelandic | vís; vissulegur |
| Italian | certo |
| Latin | cautus; certus |
| Luxemburgish | sécher |
| Papiamento | sigur |
| Polish | pewny; przeświadczony |
| Portuguese | certo; indubitável; seguro |
| Romanian | sigur |
| Russian | верный |
| Saterland Frisian | bestimd; exakt; gnau; innedoat; kuut; seküür; wäi; wildääge; wisse |
| Scots | shuir |
| Scottish Gaelic | cinnteach |
| Spanish | cierto |
| Swedish | given; säker; trygg |
| Turkish | belirli |
| Yiddish | זיכער |