Definition of a Keyword
So a keyword is not necessary just one word, although it can be, it's typically a phrase or group of words. For example we could optimize our website for the keyword Tampa SEO company. Our goal would be to rank high in search engines like Google in order to drive people to our website who are searching for SEO companies in Tampa.
In our marketing stats emails, the lists of keywords or the keyword count are those keywords we chose as being best to target your website and web pages for. This number doesn't typically change. We choose your keywords through researching by finding out which keywords have the most searches, are relevant, and are realistic to rank high in search engines for.