American Heritage® Dictionary of the English Language, Fourth Edition
- n. The ordinal number matching the number 70 in a series.
- n. One of 70 equal parts.
Century Dictionary and Cyclopedia
- Next in order after the sixtyninth: an ordinal numeral.
- Constituting or being one of seventy parts into which a whole may be divided.
- n. One next in order after the sixty-ninth; the tenth after the sixtieth.
- n. The quotient of unity divided by seventy; one of seventy equal parts.
- adj. The ordinal form of number seventy.
- n. The person or thing in the seventieth position.
- n. One of seventy equal parts of a whole.
GNU Webster's 1913
- adj. Next in order after the sixty-ninth.
- adj. Constituting or being one of seventy equal parts.
- n. One next in order after the sixty-ninth.
- n. The quotient of a unit divided by seventy; one of seventy equal parts or fractions.
- adj. the ordinal number of seventy in counting order
- n. position 70 in a countable series of things
“The seventieth is the consummation of the preceding ones, as the”
“The first time I talked about the “five rules for the evolution of cooperation” was at a conference held in March 2006 at the Zoology Department at the University of Oxford in honor of the seventieth birthday of my great friend and mentor, Lord May of Oxford.”
“The seventieth anniversary of Britain's entry into WWII following Germany's invasion of Poland on the 1st of September 1939 sees its surviving participants in their eighties and nineties.”
“I wrote a profile of Berry back in 2004, on the occasion of his seventieth birthday:”
“As virtuoso drummer Jack DeJohnette approaches his seventieth birthday -- he will turn 70 on August 9th of this year -- he can look back at an extensive body of work that speaks for itself.”
“There was to be a gala ceremony in his honor on his seventieth birthday, and ground broken at a new university library that was to bear his name.”
“My seventieth birthday failed to change this because I managed scarcely to notice it, but my seventy-first did change it.”
“But now at the approach to my seventieth birthday my back is sore and my feet are aching and the first thing I am going to do is take out the old, dusty, Austin Healey for a drive around the country… even maybe over to France.”
“But how can I let the seventieth anniversary of Pearl Harbor go by without marking it with a few words at least?”
“It was crafted out of heavy-duty plastic and lightweight enough for him to lift onto the top of his car even after his seventieth birthday.”
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