Cut the words people have, and you cut what they can think.
Newspeak is the Party's language, and it is designed to shrink. Syme, a colleague of Winston's who works on the dictionary, is proud that each new edition has fewer words. The appendix spells out the aim: once the old words are gone, a rebellious thought has nothing to be said in. Watch the words you are given for the things you might want to object to.