I used to write “LSI keywords” into SEO content briefs like it was completely normal.
I'd tell writers:
“Add these LSI keywords throughout the article.”
I didn't think twice about it.
Then I looked into what **LSI—Latent Semantic Indexing—**actually means.
That's when I realized I had been using a technical term as an SEO buzzword.
So, What Are LSI Keywords?
In SEO conversations, “LSI keywords” is usually used to mean words and phrases related to a main topic.
For running shoes, someone might call these LSI keywords:
- cushioning
- stability
- traction
- gait
- heel-to-toe drop
But here's the important part:
That doesn't mean Google gives pages an “LSI keyword list” they need to use.
LSI is a specific information-retrieval concept.
The SEO industry has largely turned “LSI keywords” into shorthand for related terms.
That's why I stopped using the phrase.
What Do I Say Instead?
I usually say:
semantically related terms
or:
related concepts
The difference might sound small, but it changed how I brief writers.
Instead of:
“Use these LSI keywords.”
I'd say:
“These are useful concepts related to the topic. Include the ones that genuinely help the reader.”
That's much better advice.
Here's Where I Went Wrong
My old workflow looked like this:
Primary keyword → LSI tool → list of terms → insert them
My current workflow is:
Topic → search intent → questions → important concepts → useful explanation
The first process makes writers look for words.
The second makes them think about the subject.
That's a much healthier approach to content.
If you want the bigger picture, read What Is Semantic Content Writing? (And Why I Stopped Counting Keywords).
Are LSI Keyword Tools Useless?
No.
They can still be useful for research.
A tool might show you related searches, questions or terminology you hadn't considered.
That's helpful.
The mistake is treating those suggestions as a secret Google checklist.
I use them as ideas, not requirements.
For example, if I'm writing about email marketing and research repeatedly points toward:
- segmentation
- automation
- deliverability
- subject lines
I'll investigate those topics.
But I won't force every term into the article.
I'll ask one question:
Does the reader need this?
If yes, include it.
If not, move on.
Does the LSI Mistake Hurt Rankings?
Not directly.
Using the phrase “LSI keywords” isn't going to destroy your rankings.
The real problem is the time you can waste chasing the wrong idea.
You can spend hours:
- collecting hundreds of related terms
- checking keyword counts
- forcing phrases into headings
- rewriting natural sentences
while forgetting the actual reader.
That's the part I eventually wanted to stop doing.
Semantic Keywords vs. LSI
Here's the simple version I wish I'd understood earlier:
| Term | Simple meaning |
|---|---|
| Primary keyword | Main search phrase or topic |
| Related terms | Words naturally connected to that topic |
| Semantic concepts | Ideas that add meaning and context |
| LSI | A specific information-retrieval technique |
| Semantic SEO | A broader approach focused on meaning and context |
Once I understood that, SEO content became much less mechanical.
The Bigger Lesson
This isn't really about one SEO term.
It's about how you think about content.
You can approach SEO like this:
Keyword → related keywords → density → rankings
Or like this:
Question → intent → topic → context → useful answer
I prefer the second one.
Not because keywords don't matter.
They do.
But a keyword is a starting point—not a writing quota.
If semantic SEO itself still feels confusing, read Semantic SEO, Explained the Way I Wish Someone Had Explained It to Me.
Final Thought
The best semantic content I've written didn't start with 50 related keywords.
It started with one question:
“What does this reader actually need to understand?”
Everything else came after that.
