certainmatter
nounUK /ˈsɜːtn ˈmætə/
US /ˈsɜːrtn ˈmætər/
A certain matter is a special thing you are talking about.
The teacher talked about a certain matter with the class.
OTHER MEANINGS
2. A fact that is known to be true.
It is a certain matter that the sun rises every morning.
3. A problem that needs to be solved.
The broken swing was a certain matter for the school to fix.
4. Something that is sure to happen.
Winning the game was a certain matter after they scored ten points.