There are three states of matter, solid, liquid, and gas.
What sentence
That rock is a solid object.
I am not writing a sentence using that word.
The first is the comparatively very high lattice enthalpy of the solid fluoride.
The door is a solid object.
Joe is solid. Most responders here are solid. Just means someone you can count on (as slang)
a sentence using the word endotracheal
This is a sentence using the word aviator.
Our subject today is "Native America Customs". The subject of the police investigation had a solid alibi.
Humans cannot walk on water, because humans are solid and water is liquid.
this is a sentence using the word armchair.