Jump To:

• Hf
  Hf

  hafnium.
• HF
  HF

  abbreviation

  (used in digital communications) have fun.
• hf.
  hf.

  abbreviation

  half.
• hf
  hf

  abbreviation

  half

Hf

¹ American  

Symbol, Chemistry.

1. hafnium.

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HF ² American  

abbreviation

1. (used in digital communications) have fun.

2. high frequency.

3. Hispanic female.

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hf. ³ American  

abbreviation

1. half.

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Hf ¹ British  

symbol

1. hafnium

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HF ² British  

abbreviation

1. high frequency

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hf ³ British  

abbreviation

1. half

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Example Sentences

See Examples For:

HF hf. hf

The Torrance Refinery uses modified hydrofluoric acid, or MHF, which the refinery considers to be a safer alternative to HF, though the claim is disputed by advocates.

From Los Angeles Times ● Feb. 8, 2026

For HF and CV mortality, increase in risk was minimal until sedentary time exceeded about 10.6 hours a day, at which point risk rose significantly, showing a "threshold" effect for the behavior.

From Science Daily ● Nov. 15, 2024

Adding moderate-to-vigorous activity cut the risk of HF by 15% and CV mortality by 10%, and even light activity made a difference by reducing HF risk by 6% and CV mortality by 9%.

From Science Daily ● Nov. 15, 2024

HF said consolidated refinery gross margin stood at $22.22 per produced barrel, a 39% fall from a year earlier.

From Reuters ● Aug. 3, 2023

HF is the only acid that will dissolve or act appreciably on glass.

From An Introduction to Chemical Science by Williams, Rufus Phillips

Carpentier, Alphabetium Tironianum, seu notes Tironis explicandi methods, folio, with numerous Short-hand Alphabets, Diplomas, Charters, &c. of Louis the Pious, hf. bd. calf, 9s.

From Notes and Queries, Number 42, August 17, 1850 by Various

O'Brien, Irish-English Dictionary, 4to. hf. bd., very scarce, 25s.

From Notes and Queries, Number 42, August 17, 1850 by Various

Banks's Dormant and Extinct Baronage of England, with Supplement, 4 vols. 4to. hf. bd. calf. 1l. 16s. 1807-37.

From Notes and Queries, Vol. IV, Number 109, November 29, 1851 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. by Various

Meyrick's Ancient Armour, last edition, much enlarged, fine coloured engravings, 3 vols. folio, hf. bd. morocco. 8l. 18s. 6d.

From Notes and Queries, Vol. IV, Number 109, November 29, 1851 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. by Various

Engravings of the Sepulchral Brasses in those Counties, original edition, folio, hf. bd. 2l. 15s.

From Notes and Queries, Vol. IV, Number 109, November 29, 1851 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. by Various

This week an Icelandic whaling company, Hvalur hf, caused uproar when it was revealed that it had killed a blue whale.

From The Guardian ● Jul. 13, 2018

Take the initial height to be zero, so that both hi and hf are zero.

From Textbooks ● Aug. 12, 2015

Photons are individual energy packets of electromagnetic waves, with Ephoton = hf, where h is Planck’s constant and f is the frequency of the associated light wave.

From Textbooks ● Aug. 12, 2015

Icelandair Group hf said on its website it will cancel all European flights tomorrow morning, affecting 6,000 passengers.

From BusinessWeek ● May 22, 2011

The line FG 6000. and fg 5267. therefore hf.

From Micrographia Some Physiological Descriptions of Minute Bodies Made by Magnifying Glasses with Observations and Inquiries Thereupon by Hooke, Robert