Are you trying to hyphenate idea? Unfortunately it cannot be hyphenated because it only contains one syllable.
|noun|| thought, content, cognitive content, mental object
|noun|| opinion, sentiment, persuasion, view, thought|
|noun|| estimate, estimation, approximation, calculation, computation, figuring, reckoning|
|noun|| mind, purpose, intent, intention, aim, design|
|noun|| theme, melodic theme, musical theme, tune, melody, air, strain, melodic line, line, melodic phrase