Dictionary definition · overrun
noun
- too much production or more than expected
verb
- invade in great numbers"the roaches infested our kitchen"
- occupy in large numbers or live on a host"the Kudzu plant infests much of the South and is spreading to the North"
- flow or run over (a limit or brim)
- seize the position of and defeat"the Crusaders overran much of the Holy Land"
- run beyond or past"The plane overran the runway"
Source: Open English WordNet (CC BY 4.0).