Before, prior to. There is no difference between these two except length and a certain affectedness on the part of 'prior to.' To paraphrase Bernstein, if you would use 'posterior to' instead of 'after,' then by all means use 'prior to' instead of 'before.
revert back is commonly seen and always redundant: ‘If no other claimant can be found, the right to the money will revert back to her’ (Daily Telegraph). Delete back.
growth. Often used contrarily by economists and those who write about them: ‘It now looks as if growth will remain stagnant until spring’ (Observer); ‘… with the economy moving into a negative growth phase’ (The Times). Growth obviously indicates expansion. If a thing is shrinking or standing still, growth simply isn’t the word for it.
future. As an adjective, the word is often used unnecessarily: ‘He refused to say what his future plans were’ (Daily Telegraph); ‘The parties are prepared to say little about how they see their future prospects’ (The Times). In both sentences, and nearly all others like them, future adds nothing and should be deleted.
disturb, perturb. They can often be used interchangeably, but generally the first is better applied to physical agitation, the second to mental agitation.
blueprint as a metaphor for a design or plan is much overworked. If the temptation to use it is irresistible, at least remember that a blueprint is a completed plan, not a preliminary one.
avenge, revenge. Generally, avenge indicates the settling of a score or the redressing of an injustice. It is more dispassionate than revenge, which indicates retaliation taken largely for the sake of personal satisfaction.
The physicist Richard Feynman once remarked that every time a colleague from the humanities department complained that his students couldn’t spell a common word like seize or accommodate, Feynman wanted to reply, “Then there must be something wrong with the way you spell it.
