Her heftiness was evident in her broad shoulders and thick waist.

She lifted the box heftily.

The new model is heftier than the previous one.

She lifted the heftiest weight in the gym.

The hefter lifted the heavy box with ease.

The box is heftable, so I can easily lift it.

The Heftys are a group of strong and powerful individuals.

His last name is Hefty.

The hefters are carrying the heavy boxes.