HM

metric unit of length equal to 100 meters

HM may refer to:Heavy metals, higher atomic weight metallic elementsHollow Metal, an abbreviation often used in architectural schedules for doorsHannah Montana, a popular Disney Channel TV showHaunted Mansion, a dark ride attraction in several Disney theme parksHM (patient), pseudonym of a man with no long-term memory (also written H.M.)HM (magazine), a Christian Hard rock magazineH&M, or Hennes & Mauritz, a Swedish clothing companyHindley-Milner, a type systemHospital Corpsman, in the United States NavyFender HM Strat, a superstrat electric guitarHis/Her Majesty, a form of address for a monarch and his/her consortHidden Machine, in the video game series PokémonAir Seychelles: International Air Transport Association (IATA) codeHeard Island and McDonald Islands: ISO 3166 digram and FIPS PUB 10-4 territory codeThe academic area of Hospitality management studiesHindustan Motors, an automobile manufacturer of Indian origin
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.hm is the Internet country code top-level domain (ccTLD) for the Heard and McDonald Islands.There has been limited use of this top-level domain, most of it unrelated in any way to the Heard and McDonald Islands. For instance, my.hm issues firstname.lastname.hm in a manner similar to the .name registry. Orz.hm is a dynamic DNS server while gbr.hm sells subdomains within its .hm domains to sites within Great Britain.
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Noun
1. a metric unit of length equal to 100 meters
(synonym) hectometer, hectometre
(hypernym) metric linear unit
(part-holonym) kilometer, kilometre, km, klick
(part-meronym) decameter, dekameter, decametre, dekametre, dam, dkm

hm, hectometer

Her Majesty, courtesy title used when referring to a queen