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opprobrium
oppugn
ops
opsin
opsonic
opsonic index
opsonify
opsonin
opsonize
-opsy
opt
opt.
opt-in e-mail
opt out
opt-out
optative
optic
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opposite number
op·po·site num·ber (plural op·po·site num·bers)


noun 
Definition:
 
counterpart: somebody with a similar job or post as somebody else, especially in another department or organization
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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