AVOIRDUPOISES
Scrabble letter values: A1V4O1I1R1D2U1P3O1I1S1E1S1 = 19
Definition
AVOIRDUPOISES is the plural of AVOIRDUPOIS.
noun AVOIRDUPOIS: a system of weights based on the 16-ounce pound (or 7,000 grains).
Synonyms of AVOIRDUPOIS: avoirdupois_weight