title: Find out to which highlight-group a particular keyword/symbol belongs in vim
body: <p>I am coming to Vim from TextMate, and I would like to customise my vim colorscheme. It would be really helpful if I could find out to which highlight-group(s) any particular word or symbol belongs. In TextMate, I would place the caret on the word/symbol in question, then hit ctrl-shift-p and a tool tip would appear saying something like:</p>
  
  <pre>text.html.basic
  meta.tag.structure.any.html
  string.quoted.double.html</pre>
  
  <p>From this information, it is really straightforward to edit a TextMate color theme to apply (or remove) formatting to the text in question.</p>
  
  <p>In Vim, if I want to change formatting for a certain word or symbol, I'm not sure where to start. Is there anything equivalent to TextMate's ctrl-shift-p?</p>