solid vs concavity

concavity vs solid

solid and concavity both are nouns.

solid is an adjective but concavity is not an adjective.

Word	Noun	Adjective	Verb	Adverb
solid	Yes	Yes	No	No
concavity	Yes	No	No	No

As nouns, concavity is a hyponym of solid; that is, concavity is a word with a more specific, narrower meaning than solid:

solid: a three-dimensional object, structurally rigid, usually resistant to changes of shape or volume
concavity: a shape that curves or bends inward

Other hyponyms of solid include convex shape, convexity, concave shape, incurvation, incurvature, cylinder, polyhedron, toroid, cast, mold, mould, stamp, block, cube, ovoid, frustum.

solid (noun)	concavity (noun)
a three-dimensional object, structurally rigid, usually resistant to changes of shape or volume	the property possessed by a concave shape
the state in which a substance has no tendency to flow under moderate stress; resists forces (such as compression) that tend to deform it; and retains a definite size and shape	a shape that curves or bends inward
matter that is solid at room temperature and pressure

solid (adjective)	concavity (adjective)
of definite shape and volume; firm; neither liquid nor gaseous
entirely of one substance with no holes inside
having length, breadth and thickness
characterized by good substantial quality
not soft or yielding to pressure
of one substance or character throughout
impenetrable for the eye
meriting respect or esteem
of a substantial character and not frivolous or superficial
financially dependable
of good quality and condition; solidly built
uninterrupted in space; having no gaps or breaks
acting together as a single undiversified whole
providing abundant nourishment
of the same color throughout

Difference between solid and concavity

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