To restore the ability to function or the effectiveness of.(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "reactivate" in a sentence
"If a voter moves within the state of Washington, why should they have to ask officials to "reactivate" their registration?"
"Even so, simply setting your computer's clock back a few months will "reactivate" the expired beta should you ever need to extract data (for instance if you ignore the fact stated above about the data being Finder accessible even if DT is no long on your Mac)."
"Smith said Pier 1 has an opportunity to "reactivate" even more of its former shoppers, and will continue to target them."