Word.ws English Dictionary

hd

hd is the abbreviation of head.

Meaning of head

Noun

head (countable and uncountable, plural heads or head)

  1. (countable) The part of the body of an animal or human which contains the brain, mouth, and main sense organs.
    • Be careful when you pet that dog on the head; it may bite.
    Synonyms:
    caput, pate, noggin, loaf, nut, noodle, bonce
    1. (people) Mental or emotional aptitude or skill.
      • The company is looking for people with good heads for business.
    2. (figuratively, metonymically, people) Mind; one's own thoughts.
      • This song keeps going through my head.
    3. (people) A headache; especially one resulting from intoxication.
      • He found whist, and gymkhanas, and things of that kind (meant to amuse one after office) good; but he took them seriously, too, just as seriously as he took the “head” that followed after drink.1888, Rudyard Kipling, “Thrown Away”, in Plain Tales from the Hills, Calcutta: Thacker, Spink and Co.; London: W. Thacker & Co., →OCLC, page 15
    4. (people) A headdress; a covering for the head.
      • a laced head
    5. (figuratively, metonymically, people) An individual person.
      • Admission is three dollars a head.

See all 79 meanings of head

Noun capitalized: HD

HD (countable and uncountable, plural HDs)

  1. (abbreviation, initialism) Initialism of high definition (“1280×720 pixels”).
    • Exploring a new place through seasonal work was like “experiencing life in HD”, she said. “It really cemented the idea that the best way to learn about things is just to dive straight in and get as much information as possible, particularly at that age.”2024 October 7, Jem Bartholomew, “‘Doesn’t feel fair’: young Britons struggle with losing right to work in EU since Brexit”, in The Guardian
  2. (abbreviation, initialism) Initialism of hard disc, hard disk, or hard drive.
    Synonyms:
    HDD
  3. (abbreviation, initialism) Initialism of homeodomain.
  4. (abbreviation, initialism) Initialism of Hansen's disease.
  5. (abbreviation, initialism) Initialism of Hodgkin's disease.
  6. (abbreviation, initialism) Initialism of Huntington's disease.
    • Huntington's disease (HD) patients are an anomaly with respect to contracting cancer, with 80% fewer cases than found in the general population.2018 February 12, “Huntington Disease siRNA a "Super-Assassin" of Tumor Cells”, in ClinicalOMICs
  7. (abbreviation, initialism) Initialism of hemodialysis.
  8. (abbreviation, initialism) Initialism of high density.
  9. (abbreviation, initialism) Initialism of heavy duty.

Proper noun capitalized: HD

HD

  1. (abbreviation, initialism) Initialism of Harley-Davidson.
  2. (abbreviation, initialism) Initialism of Home Depot.

Synonyms of hd

Forms of hd

pluralHDs

Words formed from hd

Phrases with hd

Questions about hd

What is hd the abbreviation of?
Hd is the abbreviation of head.
What part of speech is hd?
Hd can be a noun or a proper noun.
What is the plural of hd?
The plural of hd is HDs.

Words near hd in the dictionary

  1. HCTZ
  2. HCU
  3. HCUA
  4. HCV
  5. HCW
  6. hd
  7. HD DVD
  8. HD DVD drive
  9. HD DVD drives
  10. HD DVDs
  11. HD-DVD

Source and license

Adapted from Wiktionary: hd (page history and authors); HD (page history and authors); head (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “hd.” Word.ws, https://word.ws/hd. Based on Wiktionary, CC BY-SA 4.0.