hold(redirected from hold on)
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an area in the hull of a ship, between the lower deck and the bottom or second bottom.
A hold may be used for cargo, ship’s machinery, or supplies. The number of holds depends on the purpose and size of the ship. On passenger ships the length of the holds is determined by the conditions of unsinkability; for cargo ships, several classification societies regulate the number of holds depending on the length of the ship and establish a maximum length for holds. On refrigerator ships, the holds are lined on the inside with heat insulation. Cargo holds have ventilation equipment and devices for the detection and extinguishing of fires; they are usually loaded and unloaded through cargo hatches.
ii. To wait at an airfield at any time after arrival and before departure under instructions from ATC (air traffic control).
iii. An above- or below-floor compartment in all-cargo aircraft.
iv. A manual adjustment for the vertical or horizontal synchronization of a raster display.
v. An underfloor cargo compartment.
vi. To hold a parachute into the wind to reduce groundspeed.
vii. To refrain from firing at a target, as in to hold fire.
viii. To hold an aircraft off the ground when landing. Also referred to as a hold off.
ix. To stop and maintain position as in “line up and hold” and “hold position.” The former means that an aircraft is cleared to line up for takeoff but must obtain clearance, while the latter means that the aircraft should stop movement on the ground and maintain its existing position.