1. noun
    a three-dimensional shape with six square or rectangular sides
  2. noun
    (computer science) a sector or group of sectors that function as the smallest data unit permitted; "since blocks are often defined as a single sector, the terms `block`` and `sector`` are sometimes used interchangeably"
  3. noun
    a solid piece of something (usually having flat rectangular sides); "the pyramids were built with large stone blocks"
  4. noun
    housing in a large building that is divided into separate units; "there is a block of classrooms in the west wing"
  5. noun
    an obstruction in a pipe or tube; "we had to call a plumber to clear out the blockage in the drainpipe"
  6. noun
    a platform from which an auctioneer sells; "they put their paintings on the block"
  7. noun
    a metal casting containing the cylinders and cooling ducts of an engine; "the engine had to be replaced because the block was cracked"
  8. noun
    (American football) the act of obstructing someone``s path with your body; "he threw a rolling block into the line backer"
  9. noun
    a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
  10. verb
    stamp or emboss a title or design on a book with a block; "block the book cover"
  11. verb
    support, secure, or raise with a block; "block a plate for printing"; "block the wheels of a car"
  12. verb
    interfere with or prevent the reception of signals; "Jam the Voice of America"; "block the signals emitted by this station"
  13. verb
    impede the movement of (an opponent or a ball); "block an attack"
  14. verb
    block passage through; "obstruct the path"
  15. verb
    render unsuitable for passage; "block the way"; "barricade the streets"; "stop the busy road"
  16. verb
    obstruct; "My nose is all stuffed"; "Her arteries are blocked"
  17. verb
    hinder or prevent the progress or accomplishment of; "His brother blocked him at every turn"
  18. verb
    stop from happening or developing; "Block his election"; "Halt the process"
  19. verb
    shut out from view or get in the way so as to hide from sight; "The thick curtain blocked the action on the stage"; "The trees obstruct my view of the mountains"
  20. verb
    interrupt the normal function of by means of anesthesia; "block a nerve"; "block a muscle"
  21. verb
    run on a block system; "block trains"
  22. verb
    shape into a block or blocks; "block the graphs so one can see the results clearly"
  23. verb
    shape by using a block; "Block a hat"; "block a garment"
  24. verb
    be unable to remember; "I``m drawing a blank"; "You are blocking the name of your first wife!"
  25. verb
    prohibit the conversion or use of (assets); "Blocked funds"; "Freeze the assets of this hostile government"
  26. noun
    a rectangular area in a city surrounded by streets and usually containing several buildings; "he lives in the next block"
  27. noun
    a number or quantity of related things dealt with as a unit; "he reserved a large block of seats"; "he held a large block of the company``s stock"
  28. noun
    an inability to remember or think of something you normally can do; often caused by emotional tension; "I knew his name perfectly well but I had a temporary block"