The commercial intent of a keyword indicates how likely a person who is searching for that term is to buy something or otherwise engage in a transaction.

If keywords can be considered “signals” from prospective customers, keywords with commercial intent are the most promising.

Keyword density tells you how often a search term appears in a text in relation to the total number of words it contains.

From the point of view of search engines, a high keyword density is a good indicator of search engine spam.
If a keyword appears too often in a website, search engines will downgrade the website. This is something also called keyword stuffing

We measure Keyword Difficulty on a scale from 0 to 100. Keyword Difficulty is a handy metric, which helps you understand how hard it will be to rank for any search query during your keyword research process.
Whether you are analyzing your own list of keywords or looking at the suggestions in Keywords Explorer, our Keyword Difficulty metric will show you the opportunities you can easily rank for.

in anchor and title’ is where the competition figure is drawn from. It’s basically the raw competition figure (it tells us how many pages have that keyword both in the title tag and in anchor text from an external domain), and it’s provided to give you an extra level of detail when you’re making your assessment. It’s been used mainly in WordTracker SEO Tool used for Keyword Research

IAAT is where the competition figure is drawn from. It’s basically the raw competition figure (it tells us how many pages have that keyword both in the title tag and in anchor text from an external domain), and it’s provided to give you an extra level of detail when you’re making your assessment. It’s been used mainly in WordTracker SEO Tool used for Keyword Research

Latent Semantic Indexing (LSI) keywords are words that are related semantically (i.e. in meaning) to your primary keyword.

The words car and auto are related semantically. People may search using either way. LSI Is not just about synonyms.

Search your term on Google. LSI keywords will appear as bold

As the term implies, keyword search volume refers to the volume (or number) of searches for a particular keyword in a given timeframe.
It’s crucial to target keywords in your content that actually have real search volume