/ ˌəʊvəˈrʌn; NAmE ˌoʊ-/ verb ( over·ran / -ˈræn; NAmE / over·run )
1.
[ vn ] [ often passive ] ( especially of sth bad or not wanted ) to fill or spread over an area quickly, especially in large numbers :
The house was completely overrun with mice.
Enemy soldiers had overrun the island.
2.
to take more time or money than was intended :
[ v ]
Her lectures never overrun.
[ vn ]
You've overrun your time by 10 minutes.
► over·run / ˈəʊvərʌn; NAmE ˈoʊ-/ noun :
a cost overrun
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WORD ORIGIN
Old English oferyrnan (see over- , run ).