"hefts" in the noun sense
1. heft, heftiness, massiveness, ponderousness, ponderosity
the property of being large in mass
"hefts" in the verb sense
1. heave, heave up, heft, heft up
lift or elevate
2. heft
test the weight of something by lifting it
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License