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'gainst

American  
[genst, geynst] / gɛnst, geɪnst /
Or gainst

preposition

  1. shortened form of against.


'gainst British  
/ ɡɛnst, ɡeɪnst /

preposition

  1. poetic short for against

"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