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We found 26 dictionaries with English definitions that include the word plus sign: Click on the first link on a line below to go directly to a page where "plus sign" is defined. General (22 matching dictionaries) plus sign: American Heritage Dictionary of the English Language [home, info] plus sign: Collins English Dictionary [home, info] plus sign: Vocabulary.com [home, info] plus sign: Macmillan Dictionary [home, info] plus sign: Merriam-Webster's Online Dictionary, 11th Edition [home, info] plus-sign, plus sign: Wordnik [home, info] plus sign: Cambridge Advanced Learner's Dictionary [home, info] Plus sign: Wiktionary [home, info] plus sign: Compact Oxford English Dictionary [home, info] plus sign: The Wordsmyth English Dictionary-Thesaurus [home, info] plus sign: Infoplease Dictionary [home, info] Plus sign, plus sign: Dictionary.com [home, info] plus sign: UltraLingua English Dictionary [home, info] Plus sign: Wikipedia, the Free Encyclopedia [home, info] plus sign: Rhymezone [home, info] plus sign: Free Dictionary [home, info] plus sign: Mnemonic Dictionary [home, info] plus sign: WordNet 1.7 Vocabulary Helper [home, info] plus sign: LookWAYup Translating Dictionary/Thesaurus [home, info] plus sign: Dictionary/thesaurus [home, info] Computing (1 matching dictionary) plus sign: Encyclopedia [home, info] Miscellaneous (1 matching dictionary) plus sign: Encyclopedia of Graphic Symbols [home, info] Science (2 matching dictionaries) Plus Sign: Eric Weisstein's World of Mathematics [home, info] plus sign: PlanetMath Encyclopedia [home, info]

Quick definitions from WordNet (plus sign) ▸ noun:  a sign indicating the operation of addition