To hold back (a pupil) instead of allowing them to advance to the next class or year.
To employ by paying a retainer.
To keep in one's pay or service.
To keep in possession or use.
To hold secure.
To take an incomplete or inadequate (plan, text, etc.) and develop it further, often with the implication of carelessness.
Used other than figuratively or idiomatically: see run, with.
To be a member of (a gang, hooligan firm, etc.); to associate with a, typically disreputable, individual or group.
To follow something through to completion or realization.
To be streaming with a fluid.