A word’s form decides what job it is allowed to hold. Turn a verb into a noun and it can suddenly be the subject of a sentence; turn an adjective into an adverb and it now needs a verb to attach to. This is why the technique never changes only one word: the moment “decide” becomes “the decision”, the rest of the clause has to reorganise around a noun that was not there before. That forced reorganisation is the paraphrase.
It is also the technique that compresses. “Technology has advanced rapidly, which has made many manual jobs unnecessary” becomes “Rapid technological advances have rendered many manual jobs unnecessary”: two clauses become one, the sentence loses three words, and the register rises on the way. Compression is worth having for its own sake — the same content in fewer words reads as control, not as brevity.
And it is the one that rescues you when a word has no usable synonym at all. You do not need another word for “violent”. You need “violence”, or “violently”, and a sentence built around whichever one you chose.
“decide” → “the decision”, “grow” → “growth”. The commonest move in academic English, and it usually lifts the register with it.
“a significant increase” → “increased significantly”. Usually shortens the sentence, which helps when the prompt is long.
“depend on” → “dependence on”, never “of”. “Invest in” → “investment in”. This is where these rewrites break.
“Announce” has no noun of its own — the noun is “announcement”. Forms are looked up, never derived by removing a suffix.
