Definition

1. Noun:
   • The sixth letter of the modern English alphabet: "F" is a consonant, the sixth letter in the English alphabet.
   • A failing grade: In academic grading systems, particularly in the United States, "F" represents a failing grade.
   • A musical note: In the fixed-do solfège system, "F" is the note "Fa".
   • A unit of electrical capacitance: In physics, the farad (symbol: F) is the SI unit of capacitance.
   • A chemical element: The symbol for the element fluorine.
   • A temperature scale: A degree on the Fahrenheit temperature scale.

Usage Examples

• Noun (Letter):
  • The word "fish" starts with the letter F.
  • He wrote a capital F at the beginning of his name.
• Noun (Grade):
  • She was disappointed to receive an F on the exam.
  • An F indicates that the student did not meet the minimum requirements.
• Noun (Music):
  • The key signature for this piece is F major.
  • Please play an F on your instrument.
• Noun (Physics):
  • This capacitor has a value of 10 microfarads (10 µF).
• Noun (Chemistry):
  • F is a highly reactive halogen.
• Noun (Temperature):
  • Water freezes at 32°F.

Advanced Usage

• "F-word": A euphemism for the profane English word "fuck".
  • He accidentally said the F-word on live television.
• "Press F to pay respects": An internet meme originating from a video game prompt, used humorously to express condolences.
  • When the character died, the game instructed players to "Press F to pay respects".

Variants and Related Words

• Fahrenheit (adj, n): Relating to the temperature scale where water freezes at 32° and boils at 212° under standard conditions.
  • The oven should be preheated to 350 degrees Fahrenheit.
• Farad (n): The derived SI unit of electrical capacitance.
• Fluorine (n): The chemical element with atomic number 9.

Synonyms

• Fail (n): As a grade, synonymous with an F.
  • He got a fail in chemistry.
• Flunk (n, v, informal): To fail a test or course.
  • He flunked the class.

Related Phrases

• F-stop (n): In photography, a setting on a camera lens that controls the aperture size.
  • Use a smaller F-stop for a shallower depth of field.
• F-number (n): Another term for the f-stop ratio.
• F-hole (n): An f-shaped sound hole, as on a violin or cello.

Idioms

• "To get an F": To receive a failing grade.
  • If you don't study, you will get an F.
• "F in the chat": An internet slang phrase derived from the "Press F" meme, used to express sympathy or mark a failure.
  • Their team lost the final match. F in the chat.

Noun

1. the 6th letter of the Roman alphabet
2. the capacitance of a capacitor that has an equal and opposite charge of 1 coulomb on each plate and a voltage difference of 1 volt between the plates
3. a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
4. a degree on the Fahrenheit scale of temperature