To consciously cease the ingestion or administration of (a pharmaceutical drug).
To interrupt the continuance of; to put an end to, especially as regards commercial productions; to stop producing, making, or supplying.
To keep in possession or use.
To employ by paying a retainer.
To hold back (a pupil) instead of allowing them to advance to the next class or year.
To keep in one's pay or service.
To hold secure.