Definitions
1.verb(chiefly in the passive) To arrest."The guys who robbed the bank last week have finally been run in."
2.verbTo use new machinery at less than full speed, preventing damage."I have to drive slowly for the first 1,000 miles to run the engine in."
3.verbTo start a new regime slowly.
4.verbTo score (a try).
5.verbTo insert (a word, etc.) without making a break or new paragraph.
6.verbTo alter the position of matter to fill vacant space.
7.nounAn encounter; a scrape or brush, especially one involving trouble or difficulty.
8.nounThe end-phase of a competition."Yahoo Sport's Leicester City blogger Helen Nutter gets ready for the Premier League run-in knowing her side - incredibly - still have a great chance of being crowned champions"