HL
Wikimedia disambiguation page
HL may refer to:
In arts and entertainment
Half-Life (series), a video game series by Valve
Half-Life (video game), the first game in that series
Horseland, an online community and virtual game
Harry Styles and Louis Tomlinson, part of the popular boyband One Direction known as HL when referred to together
Businesses
Hangars Liquides, an electronic music label
Hargreaves Lansdown, a British investment company
Hitachi-LG Data Storage, an optical disc drive manufacturer
Hogan Lovells, an international law firm
Houlihan Lokey, an international investment bank
Hovedstadens Lokalbaner, a Danish local railway company
HL Group, a South Korean company
Hecla Mining (NYSE ticker HL)
In linguistics
⟨hl⟩, a Latin-script digraph
Reduction of /hl/ to /l/ in Old/Middle English
Voiceless alveolar lateral fricative, a sound sometimes represented as ⟨hl⟩
Science, technology, and mathematics
HL gas, a mixture of sulfur mustard and lewisite
Half-life, in nuclear physics
Hectolitre, a unit of volume
Hessdalen light, an unexplained light seen in Norway
Hodgkin's lymphoma, a highly treatable hematological malignancy ("blood cancer")
Hotline, a telecommunications link
Hydrogen line, a spectral line
Hypotenuse Leg, a postulate of geometry
HL, an amateur radio call sign prefix in South Korea
Other uses
Croatian Labourists – Labour Party (Croatian: Hrvatski laburisti - Stranka rada), a political party in Croatia
Headline, a text indicating the nature of the article below it
Heilongjiang, a province of China (Guobiao abbreviation HL)
Higher Level, a level of course difficulty in the International Baccalaureate Diploma Programme
Hit list (disambiguation)
HL v United Kingdom a law case at the European Court of Human Rights, sometimes known as the HL case.
This brief starts where responsible research should: with the source description of “HL” as wikimedia disambiguation page. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as wikimedia disambiguation page. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 1, 2026. The linked authority identifier is Q229201. None of the 0 selected statements returned an explicit reference.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “HL” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.