matter that is solid at room temperature and pressure
"After heating it up, the metal turned from a liquid into a solid."
the state in which a substance has no tendency to flow under moderate stress; resists forces (such as compression) that tend to deform it; and retains a definite size and shape
"The ice remained solid on the windshield despite the warm sun, refusing to melt or change its shape."
a three-dimensional shape
"The teacher asked us to visualize a cube as a solid before drawing it on our paper."
A substance in the fundamental state of matter that retains its size and shape without need of a container (as opposed to a liquid or gas).
"The team decided to refactor their legacy codebase into a SOLID architecture so that new features could be added without breaking existing functionality."
Acronym of Single responsibility, Open-closed, Liskov substitution, Interface segregation and Dependency inversion. (When followed, the created system will be more likely easy to maintain, and extend over time.)
In plain English: A solid is something that has a fixed shape and volume because its particles are packed tightly together.
"The table is made of solid wood."
of definite shape and volume; firm; neither liquid nor gaseous
"ice is water in the solid state"
uninterrupted in space; having no gaps or breaks
"a solid line across the page"
"solid sheets of water"
providing abundant nourishment
"a hearty meal"
"good solid food"
"ate a substantial breakfast"
"four square meals a day"
of good quality and condition; solidly built
"a solid foundation"
"several substantial timber buildings"
of a substantial character and not frivolous or superficial
"work of solid scholarship"
"based on solid facts"
That can be picked up or held, having a texture, and usually firm. Unlike a liquid or a gas.
"The melted chocolate had set into a solid block that I could easily pick up without it dripping."
In plain English: Solid means something that is firm and not soft or squishy.
"The new chair is made of solid wood and feels very sturdy."
Usage: Use solid to describe objects that have a definite shape and volume because they cannot flow like liquids or expand like gases. This term applies whether referring to physical matter you can hold firmly or metaphorical concepts such as reliable support.
Solidly.
"The team solidly defeated their opponents by a wide margin, leaving no doubt about who would advance to the finals."
In plain English: To do something solidly means to complete it in a steady and reliable way without making mistakes.
"He performed solidly in his debut concert."
The word "solid" comes from the Latin solidus, which originally meant "whole" or "entire." It entered English via Old French, carrying forward its sense of something being complete and unified.