Basically this means getting faster, but it should really have a mathematical or statistical element to the increase in speed. So tomorrow you may go twice as fast as today, and the dafter you may go twice as fast again. Kind of like how we are depleting the resources of Planet Earth.

Learn a new word every day.
Repeat it and remind yourself what it means at least three times in a day.
Try to use the word in conversation or writing today.
Get a dictionary and look words up.