plum, plum tree (noun)

any of several trees producing edible oval fruit having a smooth skin and a single hard stone

plum (noun)

any of numerous varieties of small to medium-sized round or oval fruit having a smooth skin and a single pit

plum (adverb)

a highly desirable position or assignment

"a political plum"

plumb, plum (adverb)

exactly

"fell plumb in the middle of the puddle"

clean, plumb, plum (adverb)

completely; used as intensifiers

"clean forgot the appointment"; "I'm plumb (or plum) tuckered out"

Plum

A plum is a drupe fruit of the subgenus Prunus of the genus Prunus. The subgenus is distinguished from other subgenera in the shoots having a terminal bud and solitary side buds, the flowers in groups of one to five together on short stems, and the fruit having a groove running down one side and a smooth stone. Mature plum fruit may have a dusty-white coating that gives them a glaucous appearance. This is an epicuticular wax coating and is known as "wax bloom". Dried plum fruits are called dried plums or prunes, although prunes are a distinct type of plum, and may have antedated the fruits now commonly known as plums.

Plum

A plum is a fruit of some species in Prunus subg. Prunus. Dried plums are called prunes.