solid

What does “solid” mean?

noun.firm and stable in shape; not liquid or fluid.

SAT Usage

this term often appears in contexts related to science, engineering, or physical properties, emphasizing stability and reliability in structures or materials. It suggests a sense of permanence and strength, distinguishing it from similar words like "fluid," which implies changeability or instability.

Common Confusions

Solid implies firmness and stability in structure, while liquid usually suggests a formless and adaptable state that can easily change shape.

Example Sentences

• The foundation of the building must be solid to bear the weight.

• I owe him; he did me a solid last year.

• I prefer solids over paisleys.

• Almost all metals are solid at room temperature.

• I don't think Dave would have done that. He's a solid dude.