The interviewer wants to know your communication skill level. As a board chairman, you will communicate with individuals in and outside of the organization, so this is an important skill. Share your communication skill level for verbal and written communication as this covers speaking in public, talking on the phone, emails, and other forms of communication typically done in an organization.

You can also make your answer clear by rating yourself from 1 - 10 on your communication skills. If you have any formal training, be sure to mention that as well.

"I would rate my communication skills as a 9. There is always room for improvement, but I have developed strong communication skills over the years by being professional, explaining things clearly and thoroughly, and thinking before I speak. I have spoken in front of groups of all sizes, and email is a regular part of my duties."