midweek

from WordNet (r) 3.0 (2006)
midweek
    adv 1: in the middle of the week
    n 1: the fourth day of the week; the third working day [syn:
         {Wednesday}, {Midweek}, {Wed}]
    2: the middle of a week
    
from The Collaborative International Dictionary of English v.0.48
Midweek \Mid"week`\, n.
   The middle of the week. Also used adjectively.
   [1913 Webster]
    

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