guarantee
noun
a promise or assurance, especially one in writing, that something is of specified quality, content, benefit, etc., or that it will perform satisfactorily for a given length of time.
had been guaranteeing
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past perfect progressiveof guarantee.past perfect progressive
Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
One challenge had been guaranteeing medical evacuation flights for international health workers infected with Ebola.
From Los Angeles Times ● Oct. 9, 2014
