The most damaging one letter word: Aviod it = I
The most satisfying two-letter word: Use it = We
The most poisonous three-letter word: Kill it = Ego
The most used four-letter word: Value it = Love
The most pleasing five-letter word: Keep it = Smile
The most spreading six-letter word: Ignore it = Rumour
The most enviable seven-letter word: Achieve it = Success
The most nefarious eight-letter word: Distance it = Jealousy
The most powerful nine-letter word: Acquire it = Knowledge
The most essential ten-letter word: Maintain it = Confidence