Solid Definition

sŏlĭd

solidest, solids, solider

adjective

solidest, solider

Of definite shape and volume; not liquid or gaseous.

It was so cold the water in the bucket became solid.

American Heritage

Tending to keep its form rather than to flow or spread out like a liquid or gas; relatively firm or compact.

Webster's New World

Of or relating to three-dimensional geometric figures or bodies.

American Heritage

Filled with matter throughout; not hollow.

Webster's New World

Having the three dimensions of length, breadth, and thickness.

Prisms and other solid figures.

Webster's New World

Synonyms:

Antonyms:

noun

solids

A substance that is solid, not a liquid or gas.

Webster's New World

An object or figure having or represented as having length, breadth, and thickness.

Webster's New World

A geometric figure having three dimensions.

American Heritage

(informal) A Favor.

Please do me a solid: lend me your car for one week.

I owe him, he did me a solid last year.

Wiktionary

An article of clothing which is of a single color throughout.

I prefer solids over paisleys.

Wiktionary

Synonyms:

Synonyms:
fixed shape
three-dimensional shape
mass
body
solid body
solid state
solidness

adverb

Without a break or opening; completely or continuously.

The theater was booked solid for a month.

American Heritage

As a whole; unanimously.

The committee voted solid for the challenger.

American Heritage

Solidly.

Wiktionary

(not comparable, typography) Without spaces or hyphens.

Many long-established compounds are set solid.

Wiktionary

abbreviation

(programming, object-oriented) 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.)

Wiktionary

Other Word Forms of Solid

Noun

Singular:

solid

Plural:

solids

Adjective

Base Form:

solid

Comparative:

solider

Superlative:

solidest

Origin of Solid

Middle English solide from Old French from Latin solidus sol- in Indo-European roots

From American Heritage Dictionary of the English Language, 5th Edition
From Old French solide (as an adjective), from Latin solidus (“solid").

From Wiktionary