Hefty has 5 different meanings across 2 categories:
Adjective · Proper Noun
(of a person) possessing physical strength and weight; rugged and powerful
"a hefty athlete"
"a muscular boxer"
"powerful arms"
of considerable weight and size
"a hefty dictionary"
large in amount or extent or degree
"it cost a considerable amount"
"a goodly amount"
"received a hefty bonus"
"a respectable sum"
"a tidy sum of money"
"a sizable fortune"
Heavy, strong, vigorous, mighty, impressive.
"The hefty oak tree provided ample shade for everyone sitting beneath its massive branches."
A surname.
"My neighbor Mr. Hefty waved at me as I walked past his house on Elm Street."