Meaning of kěn dìng:
肯定
to be certain; to be positive; to give recognition; to affirm
Wǒ kěyǐ kěndìng tā huì lái.
我可以肯定他会来。
I can be certain that he will come.
Lǎobǎn duì yuángōng de nǔlì gěiyǔle gāodù de kěndìng.
老板对员工的努力给予了高度的肯定。
The boss gave high recognition to the employee's efforts.
assuredly; definitely
Tā míngtiān kěndìng huì lái.
他明天【肯定】会来。
He will definitely come tomorrow.
affirmative (answer)
Tā gěi le wǒ yī gè míngquè de kěndìng dáfù.
他给了我一个明确的肯定答复。
He gave me a clear affirmative response.