Lots of words, right? Some say 200,000; some say more.
But restrict yourself to the following conditions:-
(1) Words must be longer than three letters
(2) Words must contain "only letters a-m" OR "only letters n-z" (upper/lower case)
Such a set of words might be useful if you were teaching basic English to disadvantaged people. Examples of "a-m" include "chief", "each" and "high" (from which we could start building a sentence) and for "n-z" examples are "stop" and "support".
Can you come up with two other words for either a-m or n-z?
My only sentence to date is "Stop! Support each high chief" and I would like to expand my conversational skills.

Cheers
Chris