March 21, 2022 by Testomato

How to Find LSI Keywords to Boost Your SEO Results

Many website owners are still missing a critical SEO concept of Latent Semantic Indexing (LSI).

How to Find LSI Keywords to Boost Your SEO Results

Basically, LSI words are unique keywords that help your page with ranking. Search engines like Google judge your page based on the keywords used throughout the webpage and rank it accordingly.

In this guide, we will be reflecting in depth upon LSI keywords. These words are integral to your SEO strategy. Additionally, these concepts will help you in shaping your SEO strategy like a pro.

Let’s begin with what does it mean by the LSI keyword?

LSI keywords — Introduction

LSI stands for Latent Semantic Indexing – words, terms, and phrases similar to the target keyword of your webpage content. For example, if you talk about cars in your article, you can use words like autos, automobiles, vehicles, tires, roads, etc.

These keywords help search engines better understand the actual context of your webpage content. 

Back in the day, keyword density (the number of times a word appears in the text) was used for page ranking. Those were the simpler times, but now, various factors are considered when ranking your page. As a result, the need for understanding LSI keywords is vital to optimizing your SEO strategy.

Why did the world need LSI keywords?

Are you wondering why LSI keywords were created? Or what problems do they solve?

Generally, people are not good at describing their problems and can’t adequately explain what they actually need when searching online. They usually don’t use the keywords for the information they are looking for. So to solve this problem, search engines have become much smarter.

Here is what the creators of LSI keywords have to say about the problems they intended to resolve.

The words a searcher uses are often not the same as those by which the information sought has been indexed.”

There are different terms for the same word, and the same term can hold opposite meanings in different perspectives. To understand this, you need to know a bit about synonyms and polysemic words.


Synonyms are different terms that refer to the same word. They can often mean exactly or nearly the same.

For example, you can use the term ‘automobile’ to refer to ‘cars.’

Polysemic Words

Sometimes similar terms can refer to an entirely different meaning. A word can have multiple different interpretations. Such words are called polysemic words.

For example, the word ‘fall’ can refer to the autumn season as well as it can mean to move from a higher place to a lower place.

The term ‘apple’ can literally refer to apple the fruit or the tech brand Apple, famous for its top-notch devices.

Now that you know what the problem was, it is time to understand the working of LSI keywords.

How does LSI work?

Computers are somehow dumb machines as they only understand what they are told. They can’t understand the similarity, differences, and relationships between terms. It does not know that ‘cars’ and ‘automobiles’ can refer to the same object.

 LSI uses complex mathematical formulas and equations to make computers understand the relationships among different terms and phrases to solve this problem.

For Instance, consider that you train LSI over some documents about seasons. 

  1. First, It would come to this conclusion that ‘fall’ and ‘autumn’ are synonyms. 
  2. Secondly, it would understand that terms like fall, summers, winters, seasons, and autumn are semantically related. 
  3. Third, it would also grasp how terms can be semantically related to two entirely different sets of words. For instance, fall is semantically associated with winters, seasons, summers, accidents, injury, and slip.

Later, search engines can use this information to interpret users’ queries and bring better results efficiently and correctly.

How to find perfect LSI keywords?

Don’t merely rely on synonyms

For starters, you should not only focus on synonyms. Instead, also consider the terms related to the keyword that can be used in the same context.

When you have this thought in your mind, you will quickly identify LSI keywords for your content.

To give you an example, while writing the article for the keyword ‘cars,’ you would not only use synonyms like automobiles, autos, or motors, but you should also consider related terms such as road, tires, vehicles, speed, etc.

Look for related Google searches

Google is an excellent place to start. You can simply navigate at the bottom of the page to find related searches. It will give you a better idea of LSI keywords connected to your topic.

Another way is to focus on phrases in the search bar while you are typing your topic. Both techniques are quite helpful and similar to semantic keywords tools that help you figure out related terms.

Consult LSI graphs

You can simply use the tool ‘LSI Graph’ — just visit their site and enter your keyword. It will then show you a list of related terms.

Here is a tip: don’t get intimidated by the long list of words. Avoid stuffing keywords in your content, as it will lead to keyword stuffing issues.

Use Google’s keyword planner

Another way to find LSI keywords could be to use Google’s keyword planner tool. It will not only suggest a thousand words but also show you related terms and phrases being used in searches.

When you enter your keyword, it will also show you SEO terms that are being used widely (average monthly clicks) to help you figure out the most appropriate targeted terms.

Seek help from the experts

If you’re stuck, consider contacting an agency to help you with solutions that are specially tailored for you. SEO consultants are experts in the best strategies and are well aware of ongoing market trends.

They will professionally assist you in implementing the keywords in the right way and figure out LSI keywords that are suitable for your content.

How to use LSI keywords smartly?

Implementing your LSI keywords in the text the right way is far more critical than any other step. 

Use LSI keyword in title tags

To give your content a well-organized structure, label it accordingly. You can do it by using heading tags. You can also include these LSI keywords in the meta description, which will save the readability of your text.

Put LSI keyword in images alt tags

The images you use in your webpage should be somewhat related to the LSI keywords you have. So always add related LSI keywords in alt tags (alternative tags or HTML based) for your images.

Focus on readability and context

Don’t stuff LSI keywords unnecessarily. Always keep in mind the context of your content and only use LSI keywords where appropriate. Avoid invalid fittings as it will ruin the readability.

Final Thoughts

Computers are constantly evolving, and search engines are becoming more innovative. Since search engines now understand the context of the content you publish, using LSI keywords can be extremely helpful.

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