from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Of definite shape and volume; not liquid or gaseous.
  • adj. Firm or compact in substance.
  • adj. Not hollowed out: a solid block of wood.
  • adj. Being the same substance or color throughout: solid gold.
  • adj. Mathematics Of or relating to three-dimensional geometric figures or bodies.
  • adj. Having no gaps or breaks; continuous: a solid line of people.
  • adj. Of good quality and substance: a solid foundation.
  • adj. Substantial; hearty: a solid meal.
  • adj. Sound; reliable: solid facts.
  • adj. Financially sound.
  • adj. Upstanding and dependable: a solid citizen.
  • adj. Written without a hyphen or space. For example, the word software is a solid compound.
  • adj. Printing Having no leads between the lines.
  • adj. Acting together; unanimous: a solid voting bloc.
  • adj. Slang Excellent; first-rate.
  • n. A substance having a definite shape and volume; one that is neither liquid nor gaseous.
  • n. Mathematics A geometric figure having three dimensions.
  • adv. As a whole; unanimously: The committee voted solid for the challenger.
  • adv. Without a break or opening; completely or continuously: The theater was booked solid for a month.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. In the solid state; not fluid.
  • adj. Large, massive.
  • adj. Lacking holes or hollows; as solid gold, solid chocolate.
  • adj. Strong or unyielding; as a solid foundation.
  • adj. Excellent, of high quality, or Infallible (hyperbole); a filling meal, foolproof concept, sound idea, notable work of art, or a person with integrity.
  • adj. Written as one word, without spaces or hyphens.
  • adj. Being of a single color throughout.
  • n. 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).
  • n. A three-dimensional figure (as opposed to a surface, an area, or a curve).
  • n. Favor; a solid: a favor, a helpful deed; in solid: in favor.
  • n. An article of clothing which is of a single color throughout.
  • n. Food which is not liquid-based.
  • adv. Without spaces or hyphens.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Having the constituent parts so compact, or so firmly adhering, as to resist the impression or penetration of other bodies; having a fixed form; hard; firm; compact; -- opposed to fluid and liquid or to plastic, like clay, or to incompact, like sand.
  • adj. Not hollow; full of matter; ; not spongy; dense; hence, sometimes, heavy.
  • adj. Having all the geometrical dimensions; cubic.
  • adj. Firm; compact; strong; stable; unyielding
  • adj. Applied to a compound word whose parts are closely united and form an unbroken word; -- opposed to hyphened.
  • adj. Fig.: Worthy of credit, trust, or esteem; substantial, as opposed to frivolous or fallacious; weighty; firm; strong; valid; just; genuine.
  • adj. Sound; not weakly.
  • adj. Of a fleshy, uniform, undivided substance, as a bulb or root; not spongy or hollow within, as a stem.
  • adj. Impenetrable; resisting or excluding any other material particle or atom from any given portion of space; -- applied to the supposed ultimate particles of matter.
  • adj. Not having the lines separated by leads; not open.
  • adj. United; without division; unanimous.
  • n. A substance that is held in a fixed form by cohesion among its particles; a substance not fluid.
  • n. A magnitude which has length, breadth, and thickness; a part of space bounded on all sides.

from The Century Dictionary and Cyclopedia

  • Resisting flexure; not to be bent without force; capable of tangential stress: said of a kind of material substance. See II., 1.
  • Completely filled up; compact; without cavities, pores, or interstices; not hollow: as, a solid ball, as distinguished from a hollow one; solid soda-water, not frothy.
  • Firm; strong: as, a solid pier; a solid wall.
  • In botany, of a fleshy, uniform, undivided substance, as a bulb or root; not spongy or hollow within, as a stem.
  • In anatomy and zoology:
  • Hard, compact, or firm in consistency; having no cavities or spongy structure: opposed to spongiose, porous, hollow, cancellate, excavated, etc.
  • In entomology, specifically, formed of a single joint, or of several joints so closely applied that they appear to be one: especially said of the capitulum or club of capitate antennæ.
  • Having three dimensions; having length, breadth, and thickness; cubic: as, a solid foot contains 1,728 solid inches.
  • Sound; not weak; strong.
  • Substantial, as opposed to frivolous, fallacious, or the like; worthy of credit, trust, or esteem; not empty or vain; real; true; just; valid; firm; strong; hence, satisfactory: as, solid arguments; solid comfort; solid sense.
  • Not light, trifling, or superficial; grave; profound.
  • Financially sound or safe; possessing plenty of capital; wealthy; well-established; reliable.
  • Unanimous, or practically unanimous: as, a solid vote; the solid South.
  • Without break or opening, as a wall or façade.
  • Smooth; even; unbroken; unvaried: unshaded: noting a color or pigment.
  • Without the liquor, as oysters: said in measuring: opposite to in liquor.
  • With reference to fabrics, etc., a uniform color.
  • Synonyms Dense.
  • Stable, weighty, important.
  • n. A body which throughout its mass (and not merely at its surface) resists for an indefinite time a sufficiently small force that tends to alter its equilibrium figure, always springing back into shape after the force is removed; a body possessing elasticity of figure.
  • n. In geometry, a body or magnitude which has three dimensions—length, breadth, and thickness—being thus distinguished from a surface, which has but two dimensions, and from a line, which has but one.
  • n. plural In anatomy, all parts of the body which are not fluid: as, the solids and fluids of the body.
  • n. plural In printing, the parts of an engraving which show black or solid in print.
  • Of uniform color; self-colored: a pigeon-fanciers' term.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. uninterrupted in space; having no gaps or breaks
  • n. a three-dimensional shape
  • n. matter that is solid at room temperature and pressure
  • adj. of one substance or character throughout
  • n. 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
  • adj. of definite shape and volume; firm; neither liquid nor gaseous
  • adj. financially sound
  • adj. characterized by good substantial quality
  • adj. of good quality and condition; solidly built
  • adj. acting together as a single undiversified whole
  • adj. not soft or yielding to pressure
  • adj. entirely of one substance with no holes inside
  • adj. providing abundant nourishment
  • adj. having three dimensions
  • adj. of the same color throughout
  • adj. impenetrable for the eye
  • adj. meriting respect or esteem
  • adj. of a substantial character and not frivolous or superficial


from The American Heritage® Dictionary of the English Language, 4th Edition

Middle English solide, from Old French, from Latin solidus.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Old French solide (as an adjective), from Latin solidus ("solid").


  • Great Britain's credit is solid; that's the word, _solid_: and if that -- er -- solidarity holds true of our monetary system with "-- here Mr Pamphlett expanded and contracted his fingers as if gathering gossamers --" its delicate and far-reaching complexities ...

    Nicky-Nan, Reservist

  • The advantages which it has over the old solid form are, that it is colourless and nearly tasteless, and never forms concretions in the bowels, as the _solid_ magnesia, if persevered in for any length of time, sometimes does.

    Advice to a Mother on the Management of Her Children

  • I think we use the term solid bookings in terms of the thanksgiving timeframe I mean historically is always been a very good time of year for us anyway because of the discretionary traveler that we had historically same into the Christmas timeframe.

    JetBlue Airways Corporation CEO Discusses Q3 2010 Earnings - Call Transcript -- Seeking Alpha

  • Gameplay wise, again I'll use the term solid, I'll also use the term unoriginal - not that that's necessarily a bad thing.

    1UP RSS feed

  • United Parcel Service Inc. forecast what it called a "solid" holiday shipping season Monday, saying volume during the hectic week before Christmas will be up 6.2% from last year.

    UPS Projects Late Holiday Rush

  • Goolsbee pointed to the addition of 238,000 jobs in the manufacturing sector since 2010 and what he called "solid" increases in specific sectors.

    Obama: Economy Still Faces Tough Times

  • But parents of school-age children are not what you call a solid Democrat constituency h/t itrytobenice.

    Obama’s horrible September 8th tactical blunder - E_Pluribus_Unum’s blog - RedState

  • ROBERTS: At a briefing this weekend, U.S. officials displayed what they called solid evidence that Iran is arming Shiites in Iraq.

    CNN Transcript Feb 13, 2007

  • The head of the CIA search team, David Kay, said investigators are making what he called solid progress.

    CNN Transcript Jul 31, 2003

  • He is no one's peace partner and the tribunal says it is ready to present what it calls a solid case against him.

    CNN Transcript Feb 11, 2002


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  • "Completely filled up; compact; without cavities, pores, or interstices; not hollow: as, a solid ball, as distinguished from a hollow one; solid soda-water, not frothy."

    --from the Century Dictionary

    September 17, 2014

  • Better than liquid or gas ;)

    October 16, 2007

  • April 9, 2007