gallop

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A natural three-beat gait of a horse, faster than a canter, in which all four feet are off the ground at the same time during each stride.
2. n. A fast running motion of other quadrupeds.
3. n. A ride taken at a gallop.
4. n. A rapid pace: Events were proceeding at a gallop.
5. n. Medicine A disordered rhythm of the heart characterized by three or four distinct heart sounds in each cycle and resembling the sound of a galloping horse. Also called cantering rhythm, gallop rhythm.
6. v. To cause to gallop.
7. v. To transport at or as if at a gallop: gallop the mail to the next station.
8. v. To ride a horse at a gallop.
9. v. To move or progress swiftly: Summer was galloping by.

Century Dictionary and Cyclopedia

1. To move or run by leaps, as a horse; run with steady and more or less rapid springs. See the noun.
2. To ride a horse that is running; ride at a running pace.
3. To move very fast; scamper.
4. To cause to gallop: as, he galloped his horse all the way.
5. n. A leaping or springing gait or movement of horses (or other quadrupeds), in which the two fore feet are lifted from the ground in succession, and then the two hind feet in the same succession. The term is commonly used to denote the movement intermediate in speed and action between the canter and the run, in which during the stride two, three, or all the feet are off the ground at the same instant. (See horse.) The details of the succession of motions and the system of the steps vary with the different species of quadrupeds.
6. n. A ride at a gallop; the act of riding an animal on the gallop.
7. n. A kind of dance. See galop.

Wiktionary

1. n. The fastest gait of a horse.
2. n. A two-beat stride during which all four legs are off the ground simultaneously
3. v. To ride at a galloping pace
4. v. To make electrical or other utility lines sway and/or move up and down violently, usually due to a combination of high winds and ice accrual on the lines.

GNU Webster's 1913

1. v. To move or run in the mode called a gallop; as a horse; to go at a gallop; to run or move with speed.
2. v. To ride a horse at a gallop.
3. v. Fig.: To go rapidly or carelessly, as in making a hasty examination.
4. v. To cause to gallop.
5. n. A mode of running by a quadruped, particularly by a horse, by lifting alternately the fore feet and the hind feet, in successive leaps or bounds.

WordNet 3.0

1. v. ride at a galloping pace
2. v. cause to move at full gallop
3. n. a fast gait of a horse; a two-beat stride during which all four legs are off the ground simultaneously
4. v. go at galloping speed