n.
- Something that serves to check, restrict, or limit something else.
- Something that confirms or denies the correctness of a previous check.
- To oppose or check by a counteraction.
- To check again in order to verify.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.