Synonyms: Gedanke, Vorstellung, Begriff, Grundgedanke
| Part of speech | common noun |
|---|
| Albanian | ide |
|---|---|
| Catalan | idea |
| Czech | nápad; pojem; představa |
| Danish | begreb; idé; opfattelse |
| Dutch | begrip; benul; denkbeeld; idee; notie; opvatting; voorstelling |
| English | idea; notion |
| Esperanto | ideo |
| Faeroese | hugmynd; hugsjón; hugskot |
| Finnish | aate; ajatus |
| French | idée |
| Greek | ιδέα |
| Greek (Old Greek) | ἰδέα |
| Hungarian | ötlet |
| Icelandic | álit |
| Italian | idea; nozione |
| Low German | idee; begrip |
| Malay | ide; pikiran |
| Norwegian | oppfatning |
| Papiamento | idea |
| Polish | idea; myśl; pomysł |
| Portuguese | ideia |
| Romanian | idee |
| Saterland Frisian | Foarstaalenge; Idee; Toacht |
| Spanish | idea |
| Swedish | idé |
| Turkish | fikir |