noun

• The state or condition of having weight; weight; heaviness.
• The state or condition of being grave; seriousness.
• (music) The lowness of a note.
• (physics) The force at the Earth's surface, of the attraction by the Earth's masses, and the centrifugal pseudo-force caused by the Earth's rotation, resulting from gravitation.
• (loosely, see usage notes) Gravitation, the universal force exercised by two bodies onto each other.
• (physics) Specific gravity.