Overrun is defined as to overwhelmed by, or to extend beyond what is expected, or to move beyond.(verb)
The definition of an overrun is something that has gone beyond what is expected, or the amount by which something is exceeded.(noun)
The amount that you are over your budget is an example of your cost overrun.
See overrun in Webster's New World College Dictionary
See overrun in American Heritage Dictionary 4
verb o·ver·ran (-rănˈ), o·ver·run, o·ver·run·ning, o·ver·runs verb, transitive
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