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We found 22 dictionaries with English definitions that include the word arca:
Click on the first link on a line below to go directly to a page where "arca" is defined.

General (16 matching dictionaries)

1. arca: Merriam-Webster.com [home, info]
2. Arca: Oxford Dictionaries [home, info]
3. Arca: Vocabulary.com [home, info]
4. Arca, arca: Wordnik [home, info]
5. ARCA: Wiktionary [home, info]
6. arca: Infoplease Dictionary [home, info]
7. ARCA: Dictionary.com [home, info]
8. Arca: UltraLingua English Dictionary [home, info]
9. ARCA (NGO), ARCA, Arca (album), Arca (bivalve), Arca (musician), Arca (producer), Arca: Wikipedia, the Free Encyclopedia [home, info]
10. Arca: Rhymezone [home, info]
11. ARCA: Stammtisch Beau Fleuve Acronyms [home, info]
12. arca: Free Dictionary [home, info]
13. arca: Mnemonic Dictionary [home, info]
14. arca: WordNet 1.7 Vocabulary Helper [home, info]
15. Arca: LookWAYup Translating Dictionary/Thesaurus [home, info]
16. Arca: Dictionary/thesaurus [home, info]

Business (1 matching dictionary)

17. arca: Legal dictionary [home, info]

Computing (2 matching dictionaries)

18. ARCA: CCI Computer [home, info]
19. ARCA: BABEL: Computer Oriented Abbreviations and Acronyms [home, info]

Miscellaneous (2 matching dictionaries)

20. ARCA: Acronym Finder [home, info]
21. ARCA: AbbreviationZ [home, info]

Religion (1 matching dictionary)

22. Arca: Catholic Encyclopedia [home, info]

(Note: See arcas for more definitions.)

Quick definitions from WordNet (Arca) ▸ noun:  type genus of the family Arcidae: ark shells and blood clams ▸ name:  A surname (very rare: popularity rank in the U.S.: #36379) ▸ Also see arcas ▸ Words similar to arca ▸ Usage examples for arca ▸ Popular adjectives describing arca ▸ Words that often appear near arca ▸ Rhymes of arca ▸ Invented words related to arca