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.
(..) See what I mean? I really feel like that. Then I had to have my mouth covered for five hours.. I hadn't thought of how I would communicate that day. So I was: Trying to find a pen. What? -Some paper? -Write it fast. We're on the clock. "Hit, resist, (..)2001 The Matrix Revisited