The other answers do a good job when it comes to verbal communication. So, I will focus on nonverbal communication.
Nonverbal communication is communication between people through nonverbal or visual cues. This includes body language (kinesics), distance between people (proxemics), voice quality (paralanguage), and touch (haptics).
Based on these considerations, nonverbal communication communicates just as much or, at times, more than verbal communication.
For example, if a person has an angry facial expression, enters into an aggressive stance (kinesics), encroaches upon another person's personal space (proxemics), and touches another person in an inappropriate way (haptics), then it is clear that a confrontation is in view, even if the verb communication sounds neutral. The nonverbal cues override anything verbal.
Another consideration is that even in written text, there is nonverbal communication such as handwriting style, spacing, and the like.
In conclusion, communication is both verbal and nonverbal, which shows that human communication is more complex than it might first appear.