what a thing is made of; constituent substance or material
what all (material) things are made of; whatever occupies space and is perceptible to the senses in some way: in modern physics, matter and energy are regarded as equivalents, mutually convertible according to Einstein's formula, E = mc (i.e., energy equals mass multiplied by the square of the velocity of light); in dualistic thinking, matter is regarded as the opposite of mind, spirit, etc.
any specified sort of substance: coloring matter
material of thought or expression; what is spoken or written, regarded as distinct from how it is spoken or written; content, as distinguished from manner, style, or form
an amount or quantity, usually indefinite: a matter of a few days
something that is the subject of discussion, concern, action, etc.; thing or affair: business matters
cause, occasion, or grounds: no matter for jesting
the body of heroic stories and legends, as contained in a folk epic, regarded as central to a culture or literature: the King Arthur stories make up the matter of Britain
an important affair; thing of some moment or significance
importance; moment; significance: it's of no matter
an unfavorable state of affairs; trouble; difficulty: with the: something seems to be the matter
documents, letters, etc. sent, or to be sent, by mail; mail: second-class matter
a substance discharged by the body; specif., pus
Law something that is to be proved
Philos. that which has yet to take on form; undifferentiated substance of reality or experience
Printing
written material prepared, or to be prepared, for printing; copy
copy ready to be printed
intransitive verb
to be of importance or consequence; have significance: the things that matter to one