THE ANSWER:
The missing letter is S.
These are the only letters that begin with a short “E” sound when pronounced: ef, el, em, en, es, and ex.
Thanks for playing! Tomorrow – Free-for-all Friday.
12 Really Forced Portmanteaux That Didn’t Catch On
9 Weapons That Failed Spectacularly (and 1 That Possibly Didn’t)
11 Facts About the Ambidextrous
The Founder of Mother’s Day Later Fought to Have It Abolished
11 Problems Music Can Solve