brood
he kept on brooding over the matter

budge
she will never budge on that matter

complexion
...on the matter

delay
this matter will bear no delay

delicacy
a matter of some delicacy

dispute
the matter in dispute

entirely
to be entirely another matter

importance
a matter of the utmost importance

inert
inert matter

inorganic
inorganic matter

inquire into
to inquire into a matter

investigation
the matter under investigation

knack
it's a matter of knack

laughing
no laughing matter

matter
money matters

matter-of-fact
a matter-of-fact man

matter-of-factness
espírito ou maneira de ser terra a terra

nonvolatile
nonvolatile matter

organic
organic matter

pernickety
a pernickety matter

perplexed
a perplexed matter

pertinent
...to the matter in hand

printed
printed matter

read up
...on the matter

squeeze out
to squeeze matter out of a wound

suspended
suspended matter

tarry
tarry matter

urgency
a matter of great urgency

volatile
volatile matter