Meaning of “overrun” in the English Dictionary

"overrun" in American English

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overrunverb [ T ]

us /ˌoʊ·vərˈrʌn/ present participle overrunning, past tense overran /ˌoʊ·vərˈræn/ , past participle overrun

to spread over an area quickly and in large numbers:

The city has become increasingly unpleasant because it is overrun with tourists.

(Definition of “overrun” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"overrun" in Business English

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overrunverb [ I ]

uk /ˌəʊvəˈrʌn/ us overrunning, overran, overrun

to continue past an agreed or expected limit, especially a finishing time or a cost:

Analysts say the cost of the improvements are bound to overrun.
overrun by 10 minutes/2 weeks/$1 million, etc. The 45 minutes allocated for the briefing overran by almost 30 minutes.

overrunnoun [ C or U ]

uk /ˈəʊvəˌrʌn/ us

the fact that something has cost more money or taken more time than planned, or the additional amount of money or time spent:

He expects the department to cover this year's overrun by moving money from development.
an overrun of sth We found projects had an average time overrun of 17%.

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(Definition of “overrun” from the Cambridge Business English Dictionary © Cambridge University Press)