1. circuit board a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities
  2. circuit card a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities
  3. circuit breaker a device that trips like a switch and opens the circuit when overloaded
  4. skateboard a board with wheels that is ridden in a standing or crouching position and propelled by foot
  5. circuitry electronic equipment consisting of a system of circuits
  6. corrugated board cardboard with corrugations
  7. cardboard a stiff moderately thick paper
  8. draft board a board to select personnel for involuntary military service
  9. dart board a circular board of wood or cork used as the target in the game of darts
  10. circuitous deviating from a straight course
  11. dartboard a circular board of wood or cork used as the target in the game of darts
  12. circumspect careful to consider potential consequences and avoid risk
  13. frigate bird long-billed warm-water seabird with wide wingspan and forked tail
  14. corkboard a heat-insulating building material consisting of cork granules that are made into sheets by compressing and baking
  15. circumboreal comprising or throughout far northern regions
  16. sideboard a piece of dining room furniture with shelves and drawers
  17. scoreboard a large board for displaying the score of a contest
  18. soundboard (music) resonator consisting of a thin board whose vibrations reinforce the sound of the instrument
  19. breadboard a wooden or plastic board on which dough is kneaded or bread is sliced
  20. cricket bat the club used in playing cricket