She likes to 'communicate' [=(more informally) 'keep in touch'] with her sister through/by/via e-mail.
If you're excited about the product, your enthusiasm will 'communicate' itself to customers.
One monkey 'communicated' [='transmitted, spread'] the disease to the others.
(..) The devil is in your hands, and I will suck it out. Now, I will not cast this ghost out with a fever for the new spirit inside me has shown me I have a new way to communicate. It is a gentle whisper. Get out of here, ghost. Get out of here, ghost. Get out. Get out of here, ghost. (..)2007 There Will Be Blood