Longman Dictionary of Contemporary English - solid

~1 adj 1 »FIRM/HARD« having a firm shape, and usually hard  (Even the milk was frozen solid. | After wading through the marshes we were glad to be on solid ground. | solid food (s))  (The baby isn't old enough to eat solid foods yet.) 2 »STONGLY MADE« strong and well made  (good, solid furniture | as solid as a rock (=very solid))  (The frame looks quite flimsy, but in fact it's as solid as a rock.) 3 »VALUABLE WORK« well done and of real practical value  (five years of solid achievement | a good solid education) 4 »DEFINITE FACTS« only before noun based on real facts; definite  (We need some solid evidence to prove our case.) 5 solid basis/foundation a strong principle on which something is based  (Our relationship is built on a solid foundation of mutual trust.) 6 »HONEST AND RESPECTED« respected because you are honest and people can depend on you to behave well  (a respectable solid citizen | a firm with a solid reputation) 7 solid gold/silver/oak etc consisting completely of gold  (a solid gold cup) 8 »NOT HOLLOW« having no holes or spaces inside  (a solid rubber ball | a shrine carved out of the solid rock) 9 »LOYAL« giving loyal support that you can depend on  (a solid supporter of the Clinton administration) 10 »CONTINUOUS« informal without any pauses  (The lecture lasted two solid hours. | five hours/two weeks solid)  (On Saturday I went to bed and slept fourteen hours solid.) 11 »CLOSE TOGETHER« very close together without any spaces in between  (The road was blocked by a solid mass of protesters. | a solid line of traffic stretching away into the distance) 12 »GEOMETRY« technical having length, width, and height; three­dimensional  (A sphere is a solid figure.) 13 »IN AGREEMENT« be solid BrE to be in complete agreement  (The workers are 100% solid on this issue.) + for/agains  (The members were solid against the idea.) - solidly adv  (solidly built) - solidness n ~2 n 1 a firm object or substance that has a fixed shape, unlike a gas or liquid  (Water changes from a liquid to a solid when it freezes.) 2 solids a) food that is not liquid  (He's still too ill to eat solids) b) technical the part of a liquid which has the qualities of a solid when it is separated from the solvent2  (milk solids) 3 technical a shape which has length, width, and height