Definitions of heavy:

• noun:   a serious (or tragic) role in a play
• noun:   an actor who plays villainous roles
• adjective:   of great intensity or power or force

  Example: "A heavy blow"

• adjective:   slow and laborious because of weight

  Example: "The heavy tread of tired troops"

• adjective:   of the military or industry; using (or being) the heaviest and most powerful armaments or weapons or equipment

  Example: "Heavy artillery"

• adjective:   full and loud and deep

  Example: "Heavy sounds"

• adjective:   made of fabric having considerable thickness

  Example: "A heavy coat"

• adjective:   having or suggesting a viscous consistency

  Example: "Heavy cream"

• adjective:   (of an actor or role) being or playing the villain

  Example: "Iago is the heavy role in `Othello'"

• adjective:   wide from side to side

  Example: "A heavy black mark"

• adjective:   darkened by clouds

  Example: "A heavy sky"

• adjective:   (of sleep) deep and complete

  Example: "A heavy sleep"

• adjective:   lacking lightness or liveliness

  Example: "Heavy humor"

• adjective:   requiring or showing effort

  Example: "Heavy breathing"

• adjective:   full of; bearing great weight

  Example: "Trees heavy with fruit"

• adjective:   sharply inclined

  Example: "A heavy grade"

• adjective:   dense or inadequately leavened and hence likely to cause distress in the alimentary canal

  Example: "A heavy pudding"

• adjective:   of comparatively great physical weight or density

  Example: "A heavy load"

• adjective:   large and powerful; especially designed for heavy loads or rough work

  Example: "A heavy truck"

• adjective:   marked by great psychological weight; weighted down especially with sadness or troubles or weariness

  Example: "A heavy heart"

• adjective:   unusually great in degree or quantity or number

  Example: "Heavy taxes"

• adjective:   (physics, chemistry) being or containing an isotope with greater than average atomic mass or weight

  Example: "Heavy hydrogen"

• adjective:   used of syllables or musical beats
• adjective:   of a drinker or drinking; indulging intemperately

  Example: "A heavy drinker"

• adjective:   permitting little if any light to pass through because of denseness of matter

  Example: "Heavy fog"

• adjective:   usually describes a large person who is fat but has a large frame to carry it
• adjective:   of great gravity or crucial import; requiring serious thought

  Example: "Heavy matters of state"

• adjective:   (used of soil) compact and fine-grained

  Example: "The clayey soil was heavy and easily saturated"

• adjective:   characterized by toilsome effort to the point of exhaustion; especially physical effort

  Example: "Heavy work"

• adverb:   slowly as if burdened by much weight

  Example: "Time hung heavy on their hands"