Hi Kena,
Yes, like Deb & Tammi said, he's having you do keyword research. The Google keyword tool breaks it down to show what words & phrases people are being entered into the search engine when seeking a specific topic. The keywords/phrases that show the highest searches are the most competition. For instance, if you enter "virtual assistant" into the keyword tool, "virtual assistant" was searched approximately 110,000 times in December alone!
But, it is very broad and listed as one of the most competitive phrases. If you use some of the less searched keyword phrases with less competition, then you would be more likely to rank higher on those specific keywords.
Keywords are very important for search engine optimization (whether it be websites, blogs, articles and so forth). We all generally want people to find our content easily, higher Google rankings and a lot of website traffic. Therefore we want to use specific keyword rich phrases in our content to make it easier for people to land on our sites.
Does that make sense? Gosh it sounds confusing when trying to explain it.

LOL
Dawn