As a reader of Harry Lorayne and his memory enhancement books, it takes a while to come up with unique random words to use for memory practice.
If a list of words is required for practice, refer to http://i.artofmemory.com/generate/words to generate random words for memory enhancement practice.
There is a lot more at http://artofmemory.com that can be used to learn more about memory.
The advent of smart phones has ensured that our memory is no more used to remember phone numbers and other information. This loss of memory becomes permanent over a period of time, even scientifically.