0 used to reply completely or to emphasize something and show that there is no doubt about it:
"Could you lend me £10?" "Certainly."
"Had you forgotten about our anniversary?" "Certainly not! I've reserved a table at Michel's restaurant for this evening."
"Do you think more money should be given to education?" "Certainly!"
"This is rather a difficult question." "Yes, it's certainly not easy."
She certainly had a friend called Mark, but I don't know whether he was her boyfriend.
2 When said in answer to a question asking for help, certainly means yes:
"Can you give me a hand?" "Certainly."
Therefore, there is certainly survivor bias in our sample.
However, union levels and industry membership are certainly important factors in those decisions.
Although this is certainly true for gas dynamics, there is surely no reason why it has to be so for any system.
Certainly, some of the features fit with current feature theories.
In the context of the framework proposed here, it certainly deserves more serious scrutiny as a sound-shaping mechanism that does more than just produce voice.
They certainly have, as a common basis, the subjective perspective of either the user or the staff.
The concept of an ' orthodoxy' is certainly evocative, but little in the way of substance is provided beyond affirmation of the liberalist commitment to openness.
We are certainly not close to the end of the problem, but we are at least at the beginning.
