- Czech: nápad m .
- Dutch: idee n , ingeving f , gedachte f
- Finnish: idea
- French: idée f
- German: Idee f , Ahnung f
- Greek: ιδέα f
- Hebrew: רעיון (Ra'ayon) m .
- Hindi: विचार (vichaar)
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- Italian: idea f
- Japanese: ちゃくそう(Chyakusou)
- Polish: idea f , pomysł m .
- Portuguese: idéia f
- Romanian: idee f
- Spanish: idea f
- Swedish: idé, tanke
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