Usually means: Factorial, product of all integers.
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We found 30 dictionaries that define the word fac:

General (14 matching dictionaries)
  1. FAC, fac: Merriam-Webster
  2. fac: Oxford Learner's Dictionaries
  3. fac: American Heritage Dictionary of the English Language
  4. Fac, fac: Wordnik
  5. FAC, fac: Wiktionary
  6. fac: Infoplease Dictionary
  7. FAC(A), FAC, fac: Dictionary.com
  8. FAC: Wikipedia, the Free Encyclopedia
  9. Fac: Online Plain Text English Dictionary
  10. fac: Webster's Revised Unabridged, 1913 Edition
  11. Fac: AllWords.com Multi-Lingual Dictionary
  12. FAC: Stammtisch Beau Fleuve Acronyms
  13. fac: FreeDictionary.org
  14. Fac, fac: TheFreeDictionary.com

Art (1 matching dictionary)
  1. fac-: A Cross Reference of Latin and Greek Elements

Business (5 matching dictionaries)
  1. MoneyGlossary.com (No longer online)
  2. Glossary of Crop Abbreviations (No longer online)
  3. Abbreviations in shipping (No longer online)
  4. FAC (disambiguation), FAC: Financial dictionary
  5. Glossary of Trade and Shipping Terms (No longer online)

Computing (3 matching dictionaries)
  1. FAC: Free On-line Dictionary of Computing
  2. BABEL: Computer Oriented Abbreviations and Acronyms (No longer online)
  3. FAC (disambiguation), FAC: Encyclopedia

Medicine (2 matching dictionaries)
  1. online medical dictionary (No longer online)
  2. FAC (disambiguation), FAC: Medical dictionary

Miscellaneous (2 matching dictionaries)
  1. FAC(A), FAC: Acronym Finder
  2. AbbreviationZ (No longer online)

Slang (1 matching dictionary)
  1. F.A.C, fac: Urban Dictionary

Tech (2 matching dictionaries)
  1. FAC: GEOGRAPHIC INFORMATION SYSTEMS, CARTOGRAPHY, AND REMOTE SENSING
  2. DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations (No longer online)

Google, News, Images, Wikipedia, Reddit, BlueSky
Definitions from Wiktionary (FAC)

▸ noun:  (typography, rare) A factotum letter, or a similar kind of ornamentally bordered letter formerly used at the start of a chapter or section of a book.
▸ noun:  (colloquial) A faculty within a university.
▸ noun:  (military, aviation) Initialism of Forward Air Control.
▸ noun:  Initialism of flow-accelerated corrosion.
▸ noun:  Initialism of flow-assisted corrosion.
▸ noun:  Initialism of Fellow of the Atlantic Council.
▸ noun:  Initialism of Fatal accident control.

Similar:
lining, veneer, cladding, factlet, factette, font, factour, fact file, fascicule, f.n., more...

Opposite:
caf, backwards face, reverse face

Phrases:
fac simile, fac similes, fac (disambiguation), fo fac, Domine salvum fac regem, more...

Adjectives:
other, important, many, several, various, airborne, environmental, lachrymal, major, hernial, economic



▸ Words similar to fac

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▸ Invented words related to fac

Similar:
lining, veneer, cladding, factlet, factette, font, factour, fact file, fascicule, f.n., more...

Opposite:
caf, backwards face, reverse face

Phrases:
fac simile, fac similes, fac (disambiguation), fo fac, Domine salvum fac regem, in fac, the fac, two fac, prima fac, fac e, make a fac, considering this fac, fac inside, more...

Adjectives:
other, important, many, several, various, airborne, environmental, lachrymal, major, hernial, economic



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