chocks
Stops rolling objects
Chocks are wedge-shaped blocks placed against wheels to prevent rolling.
Aircraft on runways and boats on trailers sit secured by chocks until ready to move.
Pull the chocks means remove them so movement can begin.
The phrase chock-full (completely full) comes from the same root—the idea of wedging something tight until nothing more fits.
Obstructs or sections
- tarmacPaved airport surface
- groundcrewAirport maintenance personnel
- aircraftAirborne transportation vehicle
- runwayPaved path for planes
taxiway · hangar · pre-flight · towbar · ramp · apron · tug · fueling
Vessel's secured resting place
- dockMooring structure at water's edge
- cleatShoe spike for grip
- hawserThick nautical tethering rope
- anchorSecures ships to seabed
marina · quay · berth · drydock · shipyard · hull · boatyard · slipway
Thin piece for leveling
- spacerDevice maintaining separation
- doorstopKeeps entryways ajar
- propSupport or stage item
- taperNarrow gradually toward point
leveling · wooden wedge · packing · positioning · alignment · adjustment
Scaling steep natural surfaces
- belayAnchor a rope
- ropeThick twisted fibers
- anchorSecures ships to seabed
- rappelControlled rope descent
friction · descender · mountaineering · rigging · carabiner · protection · lead climbing · belayer
blocks
Obstructs or sections
- tarmacPaved airport surface
- groundcrewAirport maintenance personnel
- aircraftAirborne transportation vehicle
runway · taxiway · hangar · pre-flight · towbar · ramp · apron · tug · fueling · maintenance
mooring
Vessel's secured resting place
anchor · marina · quay · berth · drydock · shipyard · hull · boatyard · slipway · haul-out
shim
Thin piece for leveling
taper · leveling · wooden wedge · packing · positioning · alignment · adjustment
rock climbing
Scaling steep natural surfaces
rappel · friction · descender · mountaineering · rigging · carabiner · protection · lead climbing · belayer · stance
- airfieldsrunway, runways, hangar, hangars, control tower
- boat suppliesantifouling, seacocks, epoxy resin, bungs, anchor chain
- ship partshull, keel, deck, mast, bow
- trucking gearCB radio, logbook, tire chains, ratchet straps, ratchet strap
- longwall miningshearer, coal face, coalface, gob, headgate
- cargo logisticscargo hold, cargo loading, cargo manifest, stowage, cargo handling
chocksrollers
Rotating cylindrical movers
casters · propulsion · thrust · accelerator · throttle
chocksclearance
Permitted passage or approval
chocks away · green light · release · all clear · launch
- chock fullFilled to maximum capacity
- chocks awayAviation departure command
- chock a blockExtremely crowded together
- chocked fullCompletely filled up
- wheel chockBlock preventing vehicle roll