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Air Chief Marshal
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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  • It is their acm of happiness to mount the war-steed and ride against the foe.

    The Desert World Arthur Mangin
  • The great legislator of words, who lived when his own language was at its acm, seems undecided, yet pleaded for this liberty.

  • My influence over the mind of L——increases rapidly, and I shall let it rise to its acm before I seem to notice it.

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