Umpteen is a 7 letter English word. It's valid Scrabble word worth 11 points. It's valid Words with friends word worth 15 points.
You can make 107 anagrams from letters in umpteen (eemnptu).
1915-20; ump(ty), fanciful designation for an indeterminate number (with -ty as in twenty, etc.) + -teen
And at that it's five o'clock before I'm landed at a little flag station umpteen miles beyond nowhere.
I've made my fortune three times over, and I've got umpteen thousands more than I need for myself or Mothereen.
We've had umpteen extra drills and parades and kit inspections.
I got home at 1:30 AM and there were umpteen frantic messages from my friends.
Well, about ten minutes afterwards most of us were taken with umpteen fits.
There's a 'ell of a stunt on—there'll be umpteen slabs for the mortuary.
Zeligs of umpteen disguises and ever changing, shimmering loyalties.
Fifty states, umpteen localities, all of them with different rules not only about the rate of tax, but which items are exempt.