adjective
solid
SOL-ihd
adjective
1
Firm and stable in structure; not liquid or gas.
"The lake had frozen solid by January."
"They built the foundation from solid concrete."
2
Reliable, dependable, or of good quality.
"She gave a solid performance in the final round."
noun
1
A substance that holds its shape and volume without a container, unlike a liquid or gas.
"Ice is water in its solid form."
How to Use Solid
Learner’s notesIn plain EnglishFirm and stable rather than liquid or gas; also used loosely to mean dependable or good.
Common pairings
solid ground
solid performance
solid state
Word Forms
more solid comparative, solider comparative, more solid comparative, solids plural, most solid superlative, solidest superlative, most solid superlative
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Etymology
From Old French solide, from Latin solidus ("solid, whole").