American Heritage® Dictionary of the English Language, Fourth
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 thre