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.
(..) Thousands of people pass by there every day. Just minutes... Of course. Of course, he wants information. He's trying to communicate with his people in the underworld. Whatever was stolen, he wants it back. It's somewhere here, in a code. We can't crack this (..)2010 TvShow: Sherlock Title: The Blind Banker Season: 1 Episode 2
(..) around some bloke's dirty underwear. Those symbols at the bank, the graffiti, why were they put there? Some sort of code? Obviously. Why were they painted? Want to communicate, why not use e-mail? Well, maybe he wasn't answering. Oh, good, you follow. No. What kind of a message (..)2010 TvShow: Sherlock Title: The Blind Banker Season: 1 Episode 2