harness

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈhɑːrnɪs/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/ˈhɑrnɪs/ ,USA pronunciation: respelling(härnis)


WordReference Random House Learner's Dictionary of American English © 2026
har•ness /ˈhɑrnɪs/USA pronunciation   n. [countable]
  1. the parts other than the yoke that are attached to a horse's body or head to control it.
  2. Textilessomething resembling a harness.

v. [+ object]
  1. to put a harness on;
    attach by a harness:The horse was harnessed to the plow.
  2. to gain control over for a particular end:The hydroelectric plant harnesses water power.

WordReference Random House Unabridged Dictionary of American English © 2026
har•ness  (härnis),USA pronunciation n. 
  1. the combination of straps, bands, and other parts forming the working gear of a draft animal. Cf. yoke1 (def. 1).
  2. Textiles(on a loom) the frame containing heddles through which the warp is drawn and which, in combination with another such frame or other frames, forms the shed and determines the woven pattern.
  3. the equipment, as straps, bolts, or gears, by which a large bell is mounted and rung.
  4. ElectricitySee wiring harness. 
  5. Heraldryarmor for persons or horses.
  6. Idioms in double harness. See double harness (def. 2).
  7. Idioms in harness:
    • engaged in one's usual routine of work:After his illness he longed to get back in harness.
    • together as cooperating partners or equals:Joe and I worked in harness on our last job.

v.t. 
  1. to put a harness on (a horse, donkey, dog, etc.);
    attach by a harness, as to a vehicle.
  2. to bring under conditions for effective use;
    gain control over for a particular end:to harness water power; to harness the energy of the sun.
  3. [Archaic.]to array in armor or equipments of war.
  • Old Norse *hernest provisions for an armed force, equivalent. to herr army (compare harbor, herald) + nest provisions for a journey
  • Old French herneis baggage, equipment
  • Middle English harneis, herneis 1250–1300
harness•er, n. 
harness•less, adj. 
harness•like′, adj. 
    9. control, manage, utilize, exploit.

Collins Concise English Dictionary © HarperCollins Publishers::
harness /ˈhɑːnɪs/ n
  1. an arrangement of leather straps buckled or looped together, fitted to a draught animal in order that the animal can be attached to and pull a cart
  2. something resembling this, esp for attaching something to the body: a parachute harness
  3. the part of a loom that raises and lowers the warp threads, creating the shed
  4. archaic armour collectively
  5. in harnessat one's routine work
vb (transitive)
  1. to put harness on (a horse)
  2. (usually followed by to) to attach (a draught animal) by means of harness to (a cart, etc)
  3. to control so as to employ the energy or potential power of: to harness the atom
  4. to equip or clothe with armour
Etymology: 13th Century: from Old French harneis baggage, probably from Old Norse hernest (unattested) provisions, from herr army + nest provisionsˈharnesser n
'harness' also found in these entries (note: many are not synonyms or translations):
Collocations: make sure your harness is secure, secured his harness, tighten your harness around your [legs, hips], more...

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