Definition that contains the idea
- meaning the idea that is intended
- standard the ideal in terms of which something can be judged
- ideal the idea of something that is perfect; something that one hopes to attain
- substance the idea that is intended
- criterion the ideal in terms of which something can be judged
- federalism the idea of a federal organization of more or less self-governing units
- gibson girl the idealized American girl of the 1890s as pictured by C. D. Gibson
- free fall the ideal falling motion of something subject only to a gravitational field