- a cardinal number, 60 plus 6.
- a symbol for this number, as 66 or LXVI.
- a set of this many persons or things.
- a card game that is played by two players with a 24-card pack made by removing all cards below the nines from a regular 52-card pack, the object being to score 66 points before one's opponent.
- amounting to 66 in number.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for sixty-six
Sixty-six years and many generations later, that is still the case.Inside the Gaza Schoolyard Massacre
July 26, 2014
This past year the Social Security Administration informed me that my retirement age was sixty-six.Diane Keaton Refuses to Give In to Aging
May 19, 2014
Sixty-six percent say it is important for an independent to run for president.Not Too Late for Americans Elect to Win 2012 Presidential Election
February 14, 2012
Sixty-six percent of senators and 41 percent of House members have a net worth of more than $1 million, she pointed out.News Reports Spur Legislators to Discuss Ending Insider Trading in Congress
December 2, 2011
Sixty-six percent of women under 18 who become pregnant and whose partners are six or more years older practice contraception.Do Cougar Couples Survive?
September 29, 2011
Round and round it goes, and every time it goes round, sixty-six people die.
Last week I stood in a house where another of those sixty-six had passed.
To be exact, it is sixty-six miles from the former city and two hundred from the latter.Aztec Land
Maturin M. Ballou
The text is printed in two columns with sixty-six lines to a column.The Facts About Shakespeare
William Allan Nielson
Columbus sailed with three ships, the largest sixty-six feet long.Evening Round Up
William Crosbie Hunter