What is an ANAGRAM?
As usual, wikipedia provides the answer;
An anagram is a type of word play, the result of rearranging the letters of a word or phrase to produce a new word or phrase, using all the original letters exactly once.
Meaning, any word or phrase that exactly reproduces the letters in another order is an anagram.
Example:
The letters in the word GARDEN can be rearranged to form the anagram, DANGER.
