#weightiness__weightines__heavines  the property of being comparatively great in weight; "the heaviness of lead"
  exclusion:  weightlessness
  supertype:  weight  the vertical force exerted by a mass as a result of gravity
  subtype:  heft__heftiness__heftines__massivenes__ponderousnes  the property of being large in mass
  subtype:  preponderance  exceeding in heaviness; having greater weight; "the least preponderance in either pan will unbalance the scale"

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