Chock

Noun

 * 1) Any wooden block used as a wedge or filler
 * 2)  Any fitting or fixture used to restrict movement, especially movement of a line; traditionally was a fixture near a bulwark with two horns pointing towards each other, with a gap between where the line can be inserted.
 * 3) Blocks made of either wood, plastic or metal, used to keep a parked aircraft in position.

Verb

 * 1) To stop or fasten, as with a wedge, or block; to scotch.
 * 2)  To insert a line in a chock.

Thesaurus
arrest, bar, barricade, bearing rein, bit, block, block up, blockade, bolt, brake, brim, chain, charge, check, checkrein, choke, choke off, clog, close, close off, close tight, close up, congest, constrict, countercheck, cram, crowd, curb, curb bit, damper, debar, dog, doorstop, drag, drag sail, drift anchor, drift sail, drogue, fetter, fill, fill to overflowing, fill up, freight, holdback, jam, jam-pack, lade, load, lock, martingale, obstruct, occlude, overfill, pack, pad, pelham, ram in, remora, satiate, saturate, scotch, sea anchor, shackle, shut off, shut out, shut tight, snaffle, spoke, squeeze, squeeze shut, stay, stifle, stop, stop up, strangle, strangulate, stuff, suffocate, supercharge, surfeit, top off, trammel, wad, weight