Emphasis or Distinction

used to begin a statement that may disagree with or criticize someone while still being polite

With all due respect, I have a different opinion on how to approach this project.

used to give enthusiastic permission or encouragement to do something

If you want to join us for dinner, by all means, feel free to come over.

used to indicate that what is about to be mentioned is so obvious that it does not require further explanation

Needless to say, a fire alarm should be taken seriously, and everyone should evacuate the building immediately when it goes off.

used to introduce a statement or idea that should be considered because of the information or context just discussed

We have a limited budget for this project, so with that in mind, we need to prioritize our expenses carefully.

used to indicate that the statement being made is a significant understatement or that there is much more that could be said about the topic

The traffic during rush hour was a nightmare, to say the least.

used to emphasize that the speaker is being sincere and truthful in their statement

In all honesty, I believe this is the best solution to our problem.

used to indicate that something is so obvious that it does not need to be explicitly mentioned

It goes without saying that hard work is essential for success.

used to emphasize that the speaker is about to be completely honest in what they are going to say

To tell the truth, I didn't enjoy the movie as much as I thought I would.

used to emphasize that the speaker is revealing something honestly or openly

Truth be told, I was nervous before giving the presentation.