invalidate Hear it!

invalidate definition

in·vali·date (in valə dāt′)

transitive verb invalidated -·dat′ed, invalidating -·dat′·ing

to make invalid; deprive of legal force

Etymology: invalid + -ate

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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The definition can also be " To make valueless."

Posted by anonymous 75 days ago.

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