1
: to measure up to expectations : turn out well : prove out
the spots where these prospector dreams proved upAmerican Guide Series: Arizona
2
: to bring proof of one's right to something
specifically : to show that the requirements for receiving a patent for government land have been satisfied

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near prove up

Cite this Entry

“Prove up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prove%20up. Accessed 20 Apr. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!