Usually means: Connects alternatives, expands possible choices.
Definitions Related words Phrases Mentions Lyrics History
We found 72 dictionaries that define the word Or:

General (31 matching dictionaries)
  1. or: Longman Dictionary of Contemporary English
  2. OR, -or, or: Merriam-Webster
  3. OR, OR, -or, -or, -or, -or, or, or: Oxford Learner's Dictionaries
  4. OR, OR, or, or, or: American Heritage Dictionary of the English Language
  5. -or, or: Collins English Dictionary
  6. OR, or: Vocabulary.com
  7. O'R, OR, O'r, Or, -or, o'r, or, or, or, or, or, oR: Wordnik
  8. OR, -or, or: Cambridge Advanced Learner's Dictionary
  9. OR, Or, -or, or, or-: Wiktionary
  10. -or, or: Webster's New World College Dictionary, 4th Ed.
  11. OR, -or, or: The Wordsmyth English Dictionary-Thesaurus
  12. or: Infoplease Dictionary
  13. Or, -or, o.r, or: Dictionary.com
  14. -or, or: Online Etymology Dictionary
  15. or: Cambridge Essential American English Dictionary
  16. O.R, OR, Or (Crimea), Or (My Treasure), Or (album), Or (heraldry), Or (tincture), Or, -or: Wikipedia, the Free Encyclopedia
  17. Or, -or: Online Plain Text English Dictionary
  18. or: Webster's Revised Unabridged, 1913 Edition
  19. Or: Rhymezone
  20. or, or (m): AllWords.com Multi-Lingual Dictionary
  21. or: Webster's 1828 Dictionary
  22. -or, or: MyWord.info
  23. O.R, OR: Stammtisch Beau Fleuve Acronyms
  24. or: FreeDictionary.org
  25. or, or, or, or, or, or, or: The Phrontistery - A Dictionary of Obscure Words
  26. or: Mnemonic Dictionary
  27. O.R, OR: TheFreeDictionary.com
  28. or: Wikimedia Commons US English Pronunciations
  29. or: AllWords.com Multi-Lingual Dictionary

Art (7 matching dictionaries)
  1. or: ArtLex Lexicon of Visual Art Terminology
  2. An Illustrated Dictionary of Jewelry (No longer online)
  3. Warhammer Dwarven Word List (No longer online)
  4. Shakespeare Glossary (No longer online)
  5. -or, or-, or-: A Cross Reference of Latin and Greek Elements
  6. Glossary of Stamp Collecting Terms (No longer online)
  7. ODLIS: Online Dictionary of Library and Information Science (No longer online)

Business (7 matching dictionaries)
  1. OR: Merriam-Webster Legal Dictionary
  2. O.R, or: Law.com Dictionary
  3. Everybody's Legal Dictionary (No longer online)
  4. Bouvier's Law Dictionary 1856 Edition (No longer online)
  5. O.R, O.R, Or: Legal dictionary
  6. Glossary of Trade and Shipping Terms (No longer online)
  7. Accounting, Business Studies and Economics Dictionary (No longer online)

Computing (6 matching dictionaries)
  1. OR: Free On-line Dictionary of Computing
  2. OR: CCI Computer
  3. BABEL: Computer Oriented Abbreviations and Acronyms (No longer online)
  4. OR: Computer Telephony & Electronics Dictionary and Glossary
  5. or: Dictionary of Algorithms and Data Structures
  6. O.R, Or (Afghanistan), or: Encyclopedia

Medicine (6 matching dictionaries)
  1. OR: Merriam-Webster Medical Dictionary
  2. Dorland's Illustrated Medical Dictionary (No longer online)
  3. OR (abbreviation): MedTerms.com Medical Dictionary
  4. online medical dictionary (No longer online)
  5. O.R, OR, or-: Medical dictionary
  6. OR (abbreviation): Drug Medical Dictionary

Miscellaneous (5 matching dictionaries)
  1. Navajo Code Talkers' Dictionary (No longer online)
  2. Arms and Armour (No longer online)
  3. OR: Acronym Finder
  4. AbbreviationZ (No longer online)
  5. United States Postal Service Official Abbreviations (No longer online)

Science (5 matching dictionaries)
  1. OR, Or: Eric Weisstein's World of Mathematics
  2. or: Extragalactic Astronomy
  3. OR: A Dictionary of Quaternary Acronyms and Abbreviations
  4. or: WebElements Periodic Table of the Elements
  5. FOLDOP - Free On Line Dictionary Of Philosophy (No longer online)

Slang (1 matching dictionary)
  1. O.R, O.R, OR (Original Rude), OR: Urban Dictionary

Tech (4 matching dictionaries)
  1. OR: GEOGRAPHIC INFORMATION SYSTEMS, CARTOGRAPHY, AND REMOTE SENSING
  2. DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations (No longer online)
  3. or: Mining Terms used in mid 1800's
  4. Rane Professional Audio Reference (No longer online)

(Note: See oring as well.)

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

▸ noun:  (heraldry) The gold or yellow tincture on a coat of arms.
▸ adjective:  (heraldry) Of gold or yellow tincture on a coat of arms.
▸ adverb:  (obsolete) Early (on).
▸ adverb:  (obsolete) Earlier, previously.
▸ noun:  (logic) The binary operator inclusive or, true if one at least one of two inputs is true. In infix notation.
▸ noun:  Oregon, a state of the United States of America.
▸ noun:  Orissa, a state of India.
▸ noun:  A surname.
▸ noun:  (logic, electronics) Alternative form of OR [(logic) The binary operator inclusive or, true if one at least one of two inputs is true. In infix notation.]
▸ noun:  (healthcare, countable) Initialism of operating room. [A room in a hospital used for performing surgical operations.]
▸ noun:  (Philippines, accounting, business, countable) Initialism of official receipt.
▸ noun:  (sciences, uncountable) Initialism of operations research. [(operations) The application of scientific methods and techniques to problems of decision making, especially in business management and government administration.]
▸ noun:  (sports, countable) Initialism of Olympic Record.
▸ noun:  (anatomy, countable) Initialism of odorant receptor.
▸ noun:  (anatomy, countable) Initialism of olfactory receptor.
▸ noun:  (chiefly Wikimedia jargon) Initialism of original research.
▸ noun:  (military) Initialism of other ranks.

Similar:
any nook or cranny, believe it or not, by guess or by God, by guess or by golly, by guess or by gosh, come hell or high water, come rain or shine, common or garden variety, day or night, feast or famine, more...

Opposite:
and, also, plus, furthermore, moreover

Types:
either, neither, more...

Phrases:
or other, he or, or so, or no, or otherwise, more...


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Similar:
any nook or cranny, believe it or not, by guess or by God, by guess or by golly, by guess or by gosh, come hell or high water, come rain or shine, common or garden variety, day or night, feast or famine, more...

Opposite:
and, also, plus, furthermore, moreover

Types:
either, neither, more...

Phrases:
or other, he or, or so, or no, or otherwise, or are, or what, or something, or else, or whatever, or anything, or better, or equal, not or, and or, either or, or ever, or line, or operator, logical or, more...



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