A digit word is a word where, after possibly removing some letters, you are left with one of the single digits: ONE, TWO, THREE, FOUR, FIVE, SIX, SEVEN, EIGHT or NINE (not ZERO).
For example, BOUNCE and ANNOUNCE are digit words, since they contain the digit one.
ENCODE is not a digit word, even though it contains an O, N and E, since they are not in order.
Write a program/function which takes a single (uppercase or lowercase -- you choose) word as input or a parameter and determines if it is a digit word. Make the code as short as possible.
If the word is not a digit word, you should return 'NO', 0 or any 'falsey' value (this may vary based on your language). If the word is a digit word, you should output the digit it contains, as a number.
You can assume that no words contain more than one digit, so you won't have anything like ONFIVE.
BOUNCE 1 ENCODE NO EIGHT 8 BLACKJACK NO FABULOUS NO EXERCISE NO DRIFTWOOD 2 SERVICEMAN 7 INSIGNIFICANCE 9 THROWDOWN 2 ZERO NO OZNERO 1