solid
9 synonyms and 0 antonyms for solid, grouped by meaning and by how common each one is.
Adjective — Firm and stable in structure; not liquid or gas.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
How to use solid
The word patterns that sound natural to a native speaker.
Etymology
From Old French solide, from Latin solidus ("solid, whole").
Full origin of solid →Frequently asked questions
What does “solid” mean?
The word “solid” means firm and stable in structure; not liquid or gas. In plain terms, firm and stable rather than liquid or gas; also used loosely to mean dependable or good.
How do you pronounce “solid”?
“Solid” is pronounced SOL-ihd (/ˈsɑ.lɪd/ in IPA).
How do you use “solid” in a sentence?
Here is “solid” used in a sentence: “The lake had frozen solid by January.”
What part of speech is “solid”?
Depending on how it is used, “solid” can be an adjective and a noun.
Where does the word “solid” come from?
The word “solid” comes from Latin. From Old French solide, from Latin solidus ("solid, whole").
Is “solid” a common word?
“Solid” is a fairly common word in modern English, usually learned at around the B1 level.
How many meanings does “solid” have?
“Solid” has 3 distinct senses listed in this dictionary. The most common is: firm and stable in structure; not liquid or gas.
What is the difference between a solid and a liquid?
A solid holds a fixed shape and volume because its particles are packed tightly and held in place. A liquid keeps its volume but flows to take the shape of its container, since its particles can move past one another. Cooling a liquid enough freezes it into a solid, while heating a solid melts it back into a liquid.
What are the properties of a solid?
A solid has a definite shape and a fixed volume, and it resists being compressed. Its particles are packed closely together and vibrate in fixed positions rather than moving freely. Most solids are firm and rigid, keeping their form unless a strong enough force or amount of heat changes them.
What is an example of a solid?
Everyday solids include ice, rock, wood, metal, and glass — anything firm that keeps its own shape rather than flowing or spreading out. Water is a neat illustration of all three states of matter: solid as ice, liquid when it melts, and gas as steam.