present participle of plum

(mining) The operation of finding, by means of a mine dial (compass), the place where to sink an air shaft, or to bring an adit to the work, or to find which way the lode inclines.

plural of Plum

A surname.

simple past tense and past participle of plum

An edible, fleshy stone fruit of Prunus domestica, often of a dark red or purple colour. / A stone-fruit tree which bears this fruit, Prunus domestica.

(comparable) Of a dark bluish-red colour. / (not comparable) Choice; especially lavish or preferred.

Plumb

Completely; utterly.

(mining) To plumb.