Keyword question

Hi guys,

When targetting a keyword do appendages count as the same keyword, or do Google class it as a different word?

I.e I'm targetting Dog Training and I used that keyword a few times in an article but I also use the word "dogs" and "bulldog".

Will Google count those words when deciding keyword density or will they only count how much I use "dog" and "training"?

it will also count the other keywords related to dogs. Google understands the texts, it knows the synonyms and the related keywords

Keep your keywords contextually clean. Keyword density does not really matter, if you are targeting a specific keyword, use several of its variations but do not go after percentages for each.

Who cares? Keyword density is an obsolete SEO metric.