from The American Heritage® Dictionary of the English Language, 4th Edition

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

from Wiktionary, Creative Commons Attribution/Share-Alike License

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

from the GNU version of the Collaborative International Dictionary of English

  • transitive v. To run or pass under

from The Century Dictionary and Cyclopedia

  • n. 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.


under- +‎ run (Wiktionary)



Log in or sign up to get involved in the conversation. It's quick and easy.