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[uhn-der-ruhn] /ˌʌn dərˈrʌn/
verb (used with object), underran, underrun, underrunning.
to run, pass, or go under.
Nautical. to pass beneath (a stretched rope, net, etc.) in a boat or the like for the purpose of inspection or repairs.
something that runs or passes underneath, as a current.
an instance of costing or spending less than estimated.
a production run of a manufactured or printed item below the quantity ordered.
Origin of underrun
First recorded in 1540-50; under- + run Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for underrun
Historical Examples
  • "That 'seventeen' white pine is going to underrun," said Dyer.

    The Blazed Trail Stewart Edward White
  • The Niagara put back, and the cable was "underrun" the whole distance.

    The Story of the Atlantic Telegraph

    Henry M. (Henry Martyn) Field
  • The snow-white spires of the oncoming ship swayed with solemn and stately motions to the underrun of the quartering sea.

    My Danish Sweetheart., Volume 2 of 3 William Clark Russell
  • In precisely similar manner the horn, and in this case the skin of the coronet, is underrun.

    Diseases of the Horse's Foot Harry Caulton Reeks
  • The car had just thundered past another station, and Callahan had underrun one more stop-signal at full speed.

    The Grafters Francis Lynde
  • The 'Niagara' put back, and the cable was 'underrun' the whole distance.

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