idea idea /aɪˈdiːə/

noun

1. () The content of cognition; the main thing you are thinking about  ( thought , idea )
   the content of cognition; the main thing you are thinking about
    It was not a good idea
   it was not a good idea
    The thought never entered my mind
   the thought never entered my mind
   
2. () Your intention; what you intend to do  ( mind , idea )
   your intention; what you intend to do
    He had in mind to see his old teacher
   he had in mind to see his old teacher
    The idea of the game is to capture all the pieces
   the idea of the game is to capture all the pieces
   
   
3. () An approximate calculation of quantity, degree or worth  ( estimation , idea , approximation , estimate )
   an approximate calculation of quantity, degree or worth
    An estimate of what it would cost
   an estimate of what it would cost
    A rough idea how long it would take
   a rough idea how long it would take
   
4. () A personal view  ( idea )
   a personal view
    He has an idea that we don't like him
   he has an idea that we don't like him
   
   
5. (music) melodic subject of a musical composition  ( idea , melodic theme , musical theme , theme )
   (music) melodic subject of a musical composition
    The theme is announced in the first measures
   the theme is announced in the first measures
    The accompanist picked up the idea and elaborated it
   the accompanist picked up the idea and elaborated it