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| coalesce | 
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| v. Syn. combine; fuse; mix (تتجمع) combine; fuse; grow together; come together so as to form one whole; unite | 
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| codify | 
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| v. Syn. classify (تدوين) arrange laws, rules as a code; classify; arrange or systematize | 
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| coherent | 
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| a. Syn. adhesive; cohesive (متماسكة) adhesive; cohesive; sticking together ; logical; sound; capable of thinking and expressing yourself in a clear and consistent manner | 
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| coil | 
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| n. Syn. ring; roll (لفائف) a series of connected spirals or concentric rings formed by gathering or winding; spiral pipe or series of spiral pipes | 
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| collision | 
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| n. Syn. crash; impact (اصطدام) crash; conflict of opposed ideas or attitudes or goals | 
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| colloquialism | 
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| n.  (تتزامن العامية) colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech |