Keyword can be classified into three categories :

-Single word Keyword -Multiple word Keyword -Keywords based on Theme

Keyword(s) are basic raw material used in Search Engine Optimization (SEO). Keyword selection or Keyword Research as it is called technically, where we use special tools to find out a list of Keywords (search terms) searched by targeted audience, recently. Keyword can be single word, two or three words, multiple words and theme based.

Let’s detail each of these one by one . Understanding these categories of keywords would also help one to decide as to their targeting on specific pages.

#Keyword of Single word

Keyword of Single word is used to target a large traffic but leads to highly competition category of sites. Keyword of Single word are known as generic Keyword(s) where we target general audience. Keyword of Single word does not help to target a specific page for a specific audience.

Although, Keyword of Single word helps in bringing huge traffic but these terms are mostly not relevant these days, as, searchers mostly use two or three keyword to find out their required information.

Instead single word keywords are good theme keywords.

We can use these primary keyword 5 to 7 times in a web page for good theming according of a site. The inside pages of the site can qualify these themes into product or service categories by adding qualifiers to these theming keywords.

Example:

Keyword "Services" will produce result of all the web sites related to Services which can be United States Department of Health and Human Services, The Substance Abuse and Mental Health Services, direct Services, online Services, offline Services, Indian Services, American Services, food Services, agricultural Services, business Services, free Services, paid Services, etc.

#Keyword of Multiple words

Keyword of Multiple words is used to target a specific traffic, which leads to high sale, top position in search result listing as well as improves page rank competition. Keyword of Multiple words are known as Specific Keyword(s) where we target a specific audience & not general searcher. Keyword of Multiple words helps to target a specific page for a specific audience.

Keyword of Multiple words, more often than not are location specific and related to geographic area of your intended services or products.

#Keywords based on Theme

Keyword based on Theme are used to target a highly targeted audience, which leads to quick high sale, top position in search result listing as well as boosts page rank. Keywords based on Theme are known as Conceptual Keyword(s).

Keywords based on Theme consists all possible primary Keywords related to the web site therefore attracts high traffic of targeted audience. Keywords based on Theme add quality by providing Keyword Rich Text to search engines, which improve results and provide targeted search result listings.

Keywords based on Theme are used in each page of web site to focus on a specific topic correlated to a targeted topic or idea (theme). Keywords based on Theme effectively contribute in growth of informative pages for its site focusing on different related topics.