n.
- an oval fleshy fruit which is purple, reddish, or yellow when ripe, containing a flattish pointed stone.
- the tree bearing plums.
[Prunus domestica and related species.]
- a reddish-purple colour.
-
[usu. as modifier]
informal something highly desirable:
a plum job.
Phrase
- have a plum in one's mouth
Brit. have an upper-class accent.
Etymology
OE plūme, from med. L. pruna, from L. prunum (see prune1).