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We found 36 dictionaries with English definitions that include the word IFF:
Click on the first link on a line below to go directly to a page where "IFF" is defined.

General (15 matching dictionaries)

1. IFF, iff: Merriam-Webster.com [home, info]
2. iff: Oxford Learner's Dictionaries [home, info]
3. IFF, iff: American Heritage Dictionary of the English Language [home, info]
4. iff: Collins English Dictionary [home, info]
5. iff: Macmillan Dictionary [home, info]
6. Iff, iff: Wordnik [home, info]
7. IFF, iff: Wiktionary [home, info]
8. IFF: Webster's New World College Dictionary, 4th Ed. [home, info]
9. IFF: Infoplease Dictionary [home, info]
10. iff: Dictionary.com [home, info]
11. IFF (disambiguation), IFF (software), IFF, Iff: Wikipedia, the Free Encyclopedia [home, info]
12. IFF, iff: Stammtisch Beau Fleuve Acronyms [home, info]
13. IFF: Dictionary/thesaurus [home, info]

Art (1 matching dictionary)

14. Iff: Lexicon of Linguistics [home, info]

Business (2 matching dictionaries)

15. iff: Glossary of research economics [home, info]
16. I.F.F: Glossary of Trade and Shipping Terms [home, info]

Computing (3 matching dictionaries)

17. IFF, iff: Free On-line Dictionary of Computing [home, info]
18. IFF: BABEL: Computer Oriented Abbreviations and Acronyms [home, info]
19. IFF, Iff (disambiguation): Encyclopedia [home, info]

Medicine (2 matching dictionaries)

20. iff: online medical dictionary [home, info]
21. IFF: online medical dictionary [home, info]

Miscellaneous (4 matching dictionaries)

22. IFF: Acronym Finder [home, info]
23. IFF: Three Letter Words with definitions [home, info]
24. IFF: AbbreviationZ [home, info]
25. iff: Wordcraft Dictionary [home, info]

Science (4 matching dictionaries)

26. Iff: Eric Weisstein's World of Mathematics [home, info]
27. iff: PlanetMath Encyclopedia [home, info]
28. iff: FOLDOP - Free On Line Dictionary Of Philosophy [home, info]
29. iff: A Glossary of Mathematical Terms [home, info]

Slang (1 matching dictionary)

30. Iff: Urban Dictionary [home, info]

Sports (1 matching dictionary)

31. IFF: Body Building [home, info]

Tech (3 matching dictionaries)

32. IFF: GEOGRAPHIC INFORMATION SYSTEMS, CARTOGRAPHY, AND REMOTE SENSING [home, info]
33. IFF: Glossary of Meteorology [home, info]
34. IFF: DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations [home, info]

Quick definitions from Wiktionary (iff) ▸ noun:  Initialism of Interchange File Format, a file format standard developed for Amiga computers. ▸ noun:  Initialism of identification friend or foe. [In a civilian aircraft: a transponder that responds by sending a code identifying itself.] ▸ Words similar to IFF ▸ Usage examples for IFF ▸ Idioms related to IFF (New!) ▸ Popular adjectives describing IFF ▸ Words that often appear near IFF ▸ Rhymes of IFF ▸ Invented words related to IFF