12) magnitude. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...of rank or position: such duties as were expected of a landowner of his magnitude (Anthony Powell). b. Greatness in size or extent: The magnitude of the flood was...

13) Hubble's constant. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...a typical galaxy is receding from Earth divided by its distance from Earth. After Edwin Powell Hubble....

14) identity. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...group is the financial guts of the company, the news division is its public identity (Bill Powell). 2. The set of behavioral or personal characteristics by which...

15) civil war. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...midst of a civil war that has brought it to the brink of a complete management overhaul (Bill Powell). 3. Civil War The war in the United States between the Union...

16) mechanism. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...into being: The mechanism of oral learning is largely that of continuous repetition (T.G.E. Powell). 4. A habitual manner of acting to achieve an end. 5. Biology...

17) schmooze. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...to be a professional artist-how to be a businessperson, how to schmooze the collectors (Paige Powell, in a quote in an article by Michiko Kakutani in the NYT magazine...

18) top 1. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...or zenith: It had come at a time when he was not feeling at the top of his form (Anthony Powell). 9a. The highest position or rank: at the top of his profession....

19) brave. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...these God-given rights is to seek black power-what I call audacious power (Adam Clayton Powell, Jr.). Valiant suggests the bravery of a hero or a heroine: a sympathetic...

20) go 1. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...Prestige or no prestige, directors' jobs at some companies have actually gone begging (Bill Powell).go belly up Informal To undergo total financial failure: A record...