What is the importance of the keywords in SEO?

I have selected many keywords for my website moneyline.sg but not getting good improvement. My selected keywords are not growing anymore.
Can you please help me and suggest the best to work on?
Thank you!
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keyword is most important and valuable for SEO .

 

I think first you have to analyze your old keywords again, check the broken links through google webmaster tool. If they all are well then you have to select some more keywords for your website and target them.

 

If you go to http://www.googlekeywordtool.com/
you can go straight to the 'toolbox' where you research and find popular search words you could use, or there are tutorials both article and video, to help using the toolbox getting the best keywords suited to your site.
Google trends is another good one to check out. https://www.google.com/trends/

 

Keywords are the most important element for every search engines. Chossing the right keywords to optimize for is the first step to a successful SEO compaign.

 

As far as i know Keywords are actually the identity of the websites.

 

Yes this right that may selected less popular keywords or high competitive keywords you should research again and if you are choosing high competitive keyword then check their CPC also that would be better and then do some SEO work, you will get good response.

 

Keyword is like backbone of website in search engine. If your keyword is strong or perfect then your website become more visible in search engine.