The English language has at least one nine-letter word that remains a word as each of its letters is successively removed, right down to a single letter. That word is
- startling
- remove the l, and the word becomes: starting
- remove one t, and the word becomes: staring
- remove the a, and the word becomes: string
- remove the r, and the word becomes: sting
- remove the other t, and the word becomes: sing
- remove the g, and the word becomes: sin
- remove the s, and the word becomes: in
- remove the n, and the word becomes: I