high-water mark definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- the highest level reached by a body of water in tidal flow, flood, etc.
- the mark left after high water has receded
- a culminating point; highest point
high-water mark definition by American Heritage Dictionary
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- Abbr. HWM A mark indicating the highest level reached by a body of water.
- The highest point, as of achievement; the apex.
high-water mark - Phrases/Idioms
The peak of something, especially an achievement. For example, This composition is the high-water mark of his entire output. This expression alludes to the highest mark left on shore by the tide. [Mid-1800s]