Here are examples of the word/phrase "precisely" used in a sentence and paraphrased in a sentence...
I am glad to see that you understand precisely what I am trying to do.
I am happy to see that you understand exactly what I am endeavoring to do.
Wow! This is precisely what happened in my dream from the other day.
Wow! This is exactly what happened in my dream from the other day.
Today's meeting is precisely why I said you should wear that suit today.
Today's meeting is exactly why I said you should wear that suit today.
Other Examples...