Question

-a type of search that uses word with specific meanings

-A combination of more than one search engine

-Use this type of searching if you find nothing with a simple search

Answer 1

http://hanlib.sou.edu/searchtools/howto.html

and

http://www.google.com/search?q=crossword+dictionary&ie=utf-8&oe=utf-8&aq=t&client=firefox-a&rlz=1R1GGLL_en___US379

and maybe http://www.webopedia.com/