n. 1.  A group of nations, parties, or persons united for common action: the Communist bloc. 2.  An often bipartisan coalition of legislators acting together for a common purpose or interest: the farm bloc in the US Senate. [French, from Old French, block; see  BLOCK.]  | 
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.







