adjective

 

hard/firm hard and firm without holes or spaces, and not liquid or gas

solid ground

 

strong strong and not easily broken or damaged

solid furniture

 

time continuing for a period of time without stopping

The noise continued for two solid hours/two hours solid.

 

information Solid information, proof, etc is based on facts and you are certain that it is correct.

This provides solid evidence that he committed the crime.

 

person honest and able to be trusted

 

noun

 

not liquid a substance or object that is not a liquid or a gas

 

shape a shape that has length, width, and height, and is not flat