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Massive, Mount
massless
mast (1)
mast (2)
mast-
mast cell
mastaba
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Master
master
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master builder
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mastery
mas·ter·y [ mástəree ]


noun 
Definition:
 
1. expert skill: expert knowledge or outstanding ability
2. complete control: total control over somebody or something
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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