Then, be consistent. Don't call the same thing by possibly-misunderstood different names. On the other hand, don't unnecessarily elaborate. When you finish writing the first draft of your message, go back over it until it reads well aloud . Rearrange words and phrases to improve meaning.
Check facts for accuracy.
Rewrite all ambiguous statements - words that could be misinterpreted. Something that you inserted as a joke might be taken seriously and anger a recipient. Watch for unintended innuendo. Replace such terms with words having only one logical interpretation in the context used. You might later have to prove something that you said.