Through Google, you can use a Wonder Wheel to create a visual dictionary and thesaurus that will show definitions and alternative words in an interactive map format.
Boolean search logic consists of three key words...
Using AND (dogs and cats) will give you only information that has both of the search items.
Using OR (dogs or cats) will give you information that has both search term and each one individually.
Using NOT (dogs not cats) will give you only information that includes your first item of search.