n. One (such as a racehorse) from the same stable.
n. One from the same organization or background.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a horse stabled with another or one of several horses owned by the same person
Word Usage
"The Daily Mirror and the Racing Post are no longer part of the same newspaper group, so any accusations that I'm toadying to the bosses of a stablemate are a long way wide of the mark."