As adjectives the difference between uniform and solid
is that
uniform is unvarying; all the same while
solid is in the state of a solid; not fluid.
As nouns the difference between uniform and solid
is that
uniform is a distinctive outfit that serves to identify members of a group while
solid is a substance in the fundamental state of matter that retains its size and shape without need of a container (as opposed to a liquid or gas).
As a verb uniform
is to clothe in a uniform.
As an adverb solid is
solidly.
As an acronym SOLID is
acronym of Single responsibility Open-closed, Liskov substitution, Interface segregation and Dependency inversion|lang=en When followed, the created system will be more likely easy to maintain, and extend over time.