How many types of keywords are there in SEO?

Keywords are any type of word or set of words, regardless of their magnitude or extension, written by users in a search engine at the time the user has a need.

Example: 

shoes is a keyword,   
red shoes are two words and is also a keyword  
buy red high shoes is also a keyword.

Why are keywords so important? If we identify the keywords that our potential clients are searching for in Google, we will be able to develop a logical and effective SEO strategy.

The search volume in Google serves as an approximation to help us know the number of users per month who are searching for a keyword.

There are different types of keywords depending on their length, that is, we can vary the length of the keyword by adding new words to create more defined keywords. This type of more defined keywords can be more useful for sites that are starting, since the keywords that contain only one or two words will be the ones that will have the most competition and will be monopolized by websites with a higher ranking in Google.

The types of keywords are:

• Short keywords.   
  They are made up of a single word, and have a very high search volume per month, so they tend to be more difficult to position. In this type of keyword, in most cases, the user's intention is not clear or defined, since they are usually very general terms that do not refer to a specific question that the user may have.  
  Example: shoes 

• Medium type keywords.   
  They are characterized by the fact that they are usually composed of two, three, or four words. They have a high volume of searches per month, but are usually easier to rank for. Despite having a lot of competition, they should be the main ones to observe in any SEO strategy, obviously depending on the project, since it depends on the user's intention in each case, although the user's intention is much clearer than for shorter keywords. .  
  Example: shoes for women

• Long keywords.   
  They are made up of more than 4 words and generate a small search volume, but they are much easier to position. They are the best known and recommended in the world of SEO, especially when starting a new project. The user's intention is very defined in this case, and they are used to search for something in particular.  
  Example: 
  shoes for women on sale
  best selling women's walking shoes

When we start from scratch with an SEO strategy and with a newly created website that does not have a tour and does not have authority, we must first start by using long keywords, because large websites, with high authority, are the ones that are positioned by generic searches and short keywords.