communication definitions

Can anyone give me a less confusing definition of asynchronous communication?
I have a paper to write for school and I’ve been reading all of these definitions for asynchronous communication and I’m really confused. I as wondering if someone could kind of break it down for me and explain to me how it relates to distance learning.
thanks.
Not synchronized; that is, not occurring at predetermined or regular intervals. The term asynchronous is usually used to describe communications in which data can be transmitted intermittently rather than in a steady stream. For example, a telephone conversation is asynchronous because both parties can talk whenever they like. If the communication were synchronous, each party would be required to wait a specified interval before speaking.
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