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misshapen
missile
missilery
missing
missing link
missiology
mission
mission creep
mission critical
mission statement
Mission Viejo
missionary
missionary position
Missionary Ridge
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mission critical
mis·sion crit·i·cal


adjective 
Definition:
 
essential: essential to the success of a project, company, or other endeavor
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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