Definition of solid:
matter that is solid at room temperature and pressure
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 three-dimensional shape
characterized by good substantial quality; "solid comfort"; "a solid base hit"
of definite shape and volume; firm; neither liquid nor gaseous; "ice is water in the solid state"
entirely of one substance with no holes inside; "a solid block of wood"
of one substance or character throughout; "solid gold"; "carved out of solid rock"
uninterrupted in space; having no gaps or breaks; "a solid line across the page"; "solid sheets of water"
providing abundant nourishment; "a hearty meal"; "good solid food"; "ate a substantial breakfast"; "four square meals a day"
of good quality and condition; solidly built; "a solid foundation"; "several substantial timber buildings"
not soft or yielding to pressure; "a firm mattress"; "the snow was firm underfoot"; "solid ground"
having three dimensions; "a solid object"
impenetrable for the eye; "solid blackness"
financially sound; "the bank is solid and will survive this attack"
of a substantial character and not frivolous or superficial; "work of solid scholarship"; "based on solid facts"
meriting respect or esteem; "an upstanding member of the community"
of the same color throughout; "solid color"
acting together as a single undiversified whole; "a solid voting bloc"