Open English Wordnet
Nouns
(n)plum, plum treeany of several trees producing edible oval fruit having a smooth skin and a single hard stone (n)plumany of numerous varieties of small to medium-sized round or oval fruit having a smooth skin and a single pit (n)pluma highly desirable position or assignment“a political plum” Adverbs
(r)plumb, plumexactly“fell plumb in the middle of the puddle” (r)clean, plumb, plumcompletely; used as intensifiers“clean forgot the appointment”,
“I'm plumb (or plum) tuckered out”