Google can read and analyze texts very well. It understands that walk, walks and walking all boil down to the same thing. Also, Google knows that baby is basically the same as babies. How? By using something called keyword stemming. This gives you the freedom to alternate between different word forms while writing your text. And that’s why we introduced word form recognition in Yoast SEO Premium. So you can optimize your post and we’ll recognize the different word forms like walk, walks and walking. For longer tail keywords, we also recognize the words when you use them in a different order.

So, at Yoast, we talk about word forms, sometimes also about morphology recognition. At the same time, I hear the linguists at Yoast talking about keyword stemming too. And I noticed some SEOs talked about it as well. But what is keyword stemming? How does stemming relate to morphology recognition? And what does it have to do with SEO? I’ll explain all about it in this post.

What is keyword stemming?

Stemming or keyword stemming refers to Google’s ability to understand different word forms of a specific search query. It’s called stemming because it comes from the word stem, base or root form. To give an example: if you use the word…

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