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

Food and Drug Administration didn’t give clearance to its EchoSolv HF tool for detecting heart failure, says Petra Capital.

From The Wall Street Journal ● Sep. 9, 2026

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

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

"We believe the proposed HEP Transaction simplifies HF Sinclair's corporate structure, reduces costs and further supports the integration and optimization of our portfolio," incoming Chief Executive Officer Tim Go said in a statement.

From Reuters ● May 4, 2023

The common variety of Si02 is not soluble in water or in acids, except HF.

From An Introduction to Chemical Science by Rufus Phillips Williams

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

DAVIES' Mythology and Rites of the British Druids, with Specimens of Poetry and Remarks upon Ancient British Coins, 8vo., hf. bd. calf, 7s. 6d.

From Notes and Queries, Number 58, December 7, 1850 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. by George Bell

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

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

Murphy's Arabian Antiquities of Spain, 100 fine engravings, large folio, hf. bd. morocco, 7l. 7s.

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

Nordisk Tidskrift for Oldkyndighed, 3 vols. 8vo., numerous fine plates of Antiquities, hf. bd. calf, 12s.

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

High-intensity EM radiation consists of large numbers of photons per unit area, with all photons having the same characteristic energy hf .

From Textbooks ● Aug. 12, 2015

For simplicity, let us consider what happens with monochromatic EM radiation in which all photons have the same energy hf .

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 Robert Hooke