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insignificant
insincere
insinuate
insinuating
insinuation
insipid
insist
insistent
insnare
insobriety
insofar as
insolate
insolation
insole
insolent
insolubilize
insoluble
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insider
in·sid·er [ in sdər ] (plural in·sid·ers)


noun 
Definition:
 
somebody with privileged information: a member of a group who knows all about its inner workings
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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