The definition of solid is something which is sturdy and substantial or an object that isn't hollow.(adjective)
Solid means something that is not a liquid or a gas.(noun)
An example of a solid is an ice cube.
See solid in Webster's New World College Dictionary
Origin: ME solide < MFr < L solidus < sollus, whole: see solemn
See solid in American Heritage Dictionary 4
adjective sol·id·er, sol·id·est
Origin: Middle English solide
Origin: , from Old French
Origin: , from Latin solidus; see sol- in Indo-European roots.
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