A well-researched FAQ section is a natural home for a topic's related questions and vocabulary, giving both readers and search engines a thorough view of the subject.
Base Questions on Genuinely Related Subtopics
Each FAQ entry should reflect a real related question, not a rephrased version of the main keyword repeated with a question mark.
Let Answers Naturally Include Related Terminology
Answering each question thoroughly tends to naturally pull in related vocabulary without needing to force it.
Organize Questions Around the Related-Term Categories You've Found
Grouping FAQ entries by the related subtopics they address, rather than listing them randomly, makes the section easier to follow.
Next step: Use the LSI Tool to generate the related questions and terms worth building into your FAQ section.