But something as big as "Empire" (which built in audience each week in season one) defines the saying "needle in a haystack".
"As this becomes a two-man race, we need to define the stakes," said Terry Holt, the Bush campaign's spokesman.
"It's not very easy to define the difference," said Sandro Magister, a veteran Vatican reporter in Italy.
"This is the problem when we let the furthest people to the right define the debate," said Tania Unzueta, #Not1More's spokeswoman.
"The antiwar people cannot define the Democratic Party," said Al From, a founder of the centrist Democratic Leadership Council, of which Mr. Bayh was chairman for four years.
"It isn't up to the painter to define the symbols," said Pablo Picasso when asked to explain his celebrated mural, Guernica.
Unfortunately, he does not define the said-of relation; and his definition of the present-in relation is either circular or rests on an undefined concept of being in.
But because humor is idiosyncratically defined, the researchers said, the results were less conclusive.
Mr. O'Byrne's duties were still being defined, the spokeswoman said.
"It was the perfect race for the narrative that defined the election," said Lisa De Pasquale, director of the conference.
"We're getting better at defining the reservoirs," said Jerome Zack, an immunologist at the David Geffen School of Medicine at the University of California, Los Angeles.
