Certain is an adjective which means having no doubt or uncertainty; positive, confident and determined. It can also refer to something that is known or proven with certainty.
Usage examples
I am certain that I locked the door before leaving the house.
The results of the experiment are not certain, as there are still variables that need to be considered.
She has a certain elegance about her, which makes her stand out in a crowd.
I have a certain feeling that something good is going to happen today.
There are certain rules and regulations that need to be followed in order to maintain a safe working environment.
The company's success is dependent on attracting a certain target audience.
He has a certain way of speaking that commands attention and respect.
We need to gather certain information before making a decision.
She has a certain talent for painting, which is evident in her beautiful artwork.
The book had a certain charm that kept me hooked until the very end.
Omega 3s are also know to improve cognitive function, improve mood, offer joint protection, promote eye health, and a decreased risk in certain types of cancer. (theharvestkitchen.com)
While the current commodity environment is causing some challenges for certain of our existing operations, our proactive management approach should position them to flourish as commodity markets recover. (bbu.brookfield.com)
But it'll take a while before you can get into a house and you have to put in certain amount of hours for volunteer work. (biggerpockets.com)