Third-person singular simple present indicative form of invalidate.(verb)
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Use "invalidates" in a sentence
"'edit_term' action, which will run every time a category or tag is edited (i.e. we're assuming that the editing of a term invalidates our data and we want to remove the cached version)."
"Sorry, as I stated in my previous post, your lack of restraint and childish name-calling invalidates anything you have to say."
"Gasoline is taxed to pay for roads, so that kind of invalidates your argument."