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hp

1 American  

abbreviation

  1. horsepower.


H.P. 2 American  
Or h.p.,

abbreviation

  1. Electricity. high power.

  2. high pressure.

  3. horsepower.


HP British  

abbreviation

  1. hire-purchase

  2. horsepower

  3. high pressure

  4. (in Britain) Houses of Parliament

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Example Sentences

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Hybrid owners will enjoy a bump of 42 hp and 79 lb-ft while fuel economy soars to 29-34 mpg, depending on trim level and options.

From The Wall Street Journal • Jan. 8, 2026

Obviously, the Hybrid MAX proposition—362 hp, six-speed transmission and full-time AWD—is going to speed the plow better and faster.

From The Wall Street Journal • Dec. 4, 2025

Horsepower equals grinding power and ranges from ⅓ to one hp.

From Washington Post • Feb. 14, 2023

The Grand Wagoneer offers two engine choices: the base 6.4-liter V8 engine that produces 471 horsepower and 455 lb-ft of torque and an optional turbocharged 3.0-liter six-cylinder that pumps out 510 hp and 500 lb-ft.

From Seattle Times • May 25, 2022

Zara’s watching Nate, who is bent over a 15 hp outboard motor that a customer dropped off for repair.

From "Red Flags and Butterflies" by Sheryl Azzam