sculpture vs solid figure

sculpture and solid figure both are nouns.

Word	Noun	Adjective	Verb	Adverb
sculpture	Yes	No	Yes	No
solid figure	Yes	No	No	No

As nouns, solid figure is a hypernym of sculpture; that is, solid figure is a word with a broader meaning than sculpture:

sculpture: a three-dimensional work of plastic art
solid figure: a shape which may be described by three parameters or Cartesian geometry

Other hypernyms of sculpture include plastic art, three-dimensional figure.

sculpture (noun)	solid figure (noun)
creating figures or designs in three dimensions	a shape which may be described by three parameters or Cartesian geometry
a three-dimensional work of plastic art

sculpture (verb)	solid figure (verb)
shape (a material like stone or wood) by whittling away at it
create by shaping stone or wood or any other hard material