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open cut
open dating
open day
open door
open economy
open-end
open-end credit
open-end fund
open-end investment company
open-end mortgage
open-ended
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open enrollment
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open-faced sandwich
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World English Dictionary
Dictionnaire Français

open book
o·pen book


noun 
Definition:
 
something or somebody easily comprehensible: somebody or something that is very easy to understand or about which everything is known
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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