Convert 1, 2, 3, 4, 5, 6, 7, 8, and 9 to "one", "two", "three", etc
Python 2, 64
print' ottffssennwhoiieiieoruvxvgn  ere ehe  e   nt'[input()::9]

This is what the string looks like with some extra whitespace (try reading vertically):
o t t f f s s e n
n w h o i i e i i
e o r u v x v g n
    e r e   e h e 
    e       n t

As explained in the comments below, [input()::9] starts at the given index and selects every ninth subsequent character.