from The American Heritage® Dictionary of the English Language, 5th Edition.

  • transitive verb To run, pass, or go beneath.
  • transitive verb Nautical To haul (a line or cable) onto a boat for inspection or repair.
  • noun Something that runs under, as.
  • noun An amount or a quantity produced that is less than what has been estimated.
  • noun The difference between this amount or quantity and what has been estimated.
  • noun An undercurrent.

from The Century Dictionary.

  • noun An undercurrent.
  • To run or pass under; especially (nautical), to pass under, as for the purpose of examining: as, to underrun a cable (to pass under it in a boat, in order to examine whether any part of it is damaged or entangled); to underrun a fishing-net.
  • To move under, as a boat when a seine is hauled in over one side of it and paid out over the other.

from the GNU version of the Collaborative International Dictionary of English.

  • transitive verb (Naut.) To run or pass under
  • transitive verb (Naut.) to lift it up at one end, then walk along shifting one hand after another so that the water will run out.
  • transitive verb (Naut.) to separate its parts and put them in order.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun accounting A condition in which fewer products are delivered or produced than had been ordered.
  • noun computing A condition in which the read/write buffer is fed with data at a slower rate than required; a buffer underrun.


from Wiktionary, Creative Commons Attribution/Share-Alike License

under- +‎ run



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